List of Stargate SG-1 episodes

File:Stargatesg1season3dvd.jpg

Region 1 DVD box-set of SG-1 Season 3.

The plot of Stargate SG-1 follows directly from the plot of the 1994 movie Stargate. In many cases, knowledge of the events of the film is required to understand the happenings of Stargate SG-1, and as such a brief outline is given here.

In the story of the film, an ancient artifact of alien design (the eponymous Stargate) was found in Giza, and discovered to be capable of teleportation across the galaxy. Maverick Renegade Egyptologist Daniel Jackson, Colonel Jack O'Neill and other recruits travel to the planet Abydos and free its people from the alien oppressor Ra, who had used Stargates to transport human slaves to many worlds for thousands of years, posing as a god. O'Neill returns to Earth without the newly betrothed Jackson, and there the Stargate program is shut down.

The plot of Stargate SG-1 begins one year after O'Neill's return, and continues to develop in order through the episode list, in a sequential chronological order.

The first nine seasons of Stargate SG-1 are available for purchase on DVD. See Stargate SG-1 DVD for more information.

Season 1

Pic	Title	Original airdate	#
File:Children of the Gods 1.jpg	Children of the Gods (Part 1)	July 27, 1997	101A
	The Stargate Program is revived when Apophis, an alien of the same race as Ra, comes to Earth through the gate seeking hosts. Jack O'Neill and new recruit Samantha Carter are sent to Abydos to locate Daniel Jackson.
File:Children of the Gods 2.jpg	Children of the Gods (Part 2)	July 27, 1997	101B
	O'Neill and Jackson befriend Apophis' first prime Teal'c, a Jaffa (one who is host to a larval Goa'uld), and Teal'c joins their side. He helps SG-1 return to Earth, though they cannot save Daniel's wife Sha're and his friend Skaara, who have been taken as hosts.
File:The Enemy Within.jpg	The Enemy Within	August 1, 1997	102
	After being infested by a Goa'uld parasite in the previous episode, Major Kawalsky shows signs of possession. The symbiote is removed, but Kawalsky remains possessed and is killed by Teal'c.
	Emancipation	August 8, 1997	103
	SG-1 visits a planet where women are severely repressed, and Carter ends up being 'sold'. However, when Carter beats a chieftain in hand-to-hand combat, the team changes the tribe's opinions about the rights of women.
File:The Broca Divide.jpg	The Broca Divide	August 15, 1997	104
	The team finds a planet divided into 'Light' and 'Dark' sides, where the dark side is infected with a deadly plague that turns people into savages; and the SGC is locked down when SG-1 brings it home. Dr. Fraiser manages to synthesise a cure for both peoples.
File:The First Commandment.jpg	The First Commandment	August 22, 1997	105
	As SG-9 is off-world, and long overdue, SG-1 is sent after them to find out what has happened to them. They soon discover that the commander of SG-9 has set himself up as a God on the planet.
File:Cold Lazarus.jpg	Cold Lazarus	August 29, 1997	106
	By the work of a strange blue crystal, a duplicate of Jack O'Neill returns to the SGC in his place. When the real Jack returns, they locate the alien, who, they discover, was only trying to heal Jack's pain over the loss of his son.
File:The Nox.jpg	The Nox	September 12, 1997	107
	When SG-1 meet a Jaffa patrol on an alien world, they and a Jaffa soldier are killed. Once revived by the Nox, SG-1 tries to persuade them to aide them. But the Nox are pacifists and send SG-1 and the Jaffa home in safety.
File:Brief Candle.jpg	Brief Candle	September 19, 1997	108
	On the planet Argos, the inhabitants live only 100 days by the work of a long-gone experimenting Goa'uld; Jack is infected with the responsible nanites, but they are all deactivated by Sam.
	Thor's Hammer	September 26, 1997	109
	SG-1 goes to the planet Cimmeria in search of allies against the Goa'uld. Upon arrival, Jack and Teal'c are trapped in a labyrinth, where the only exit is through the legendary Thor's Hammer, a device to destroy Goa'uld symbiotes but preserve the host. Daniel Jackson must destroy the device that could someday have saved his wife in order to free his friends.
File:The Torment of Tantalus.jpg	The Torment of Tantalus	October 3, 1997	110
	SG-1 recovers Dr. Ernest Littlefield, who went through the Stargate in 1945 and never returned. Daniel nearly stays behind to study a 'book' detailing the meaning of human existence, left behind by the Four Great Races.
File:Bloodlines.jpg	Bloodlines	October 10, 1997	111
	Teal'c's son Rya'c is to be implanted with his first Goa'uld larva on Chulak, so SG-1 goes to prevent it. However, Rya'c falls ill and can only be saved by a symbiote; Teal'c donates his own, and receives a stolen one for himself.
	Fire and Water	October 17, 1997	112
	SG-1 has been given a false memory of Daniel's death by his alien abductor, who wishes Daniel to give him certain knowledge. Ultimately, Daniel remembers the obscure fact, and is allowed to go home.
	Hathor	October 24, 1997	113
	The Goa'uld Hathor (one of the mothers of all Goa'uld), brainwashes the men of the SGC with pheromones, and nearly makes Jack a host to a larva conceived with Daniel. She flees after the unaffected women of Stargate Command retake the facility.
	Singularity	October 31, 1997	114
	SG-1 rescues a small girl who turns out to have had an inoperable Naquadah bomb put in her by Nirrti to destroy the SGC. Ultimately the girl is given to the care of Janet Fraiser, the SGC medic, after they discover that the bomb will dissolve if she is kept away from the Stargate.
File:Cor-ai.jpg	Cor-ai	January 23, 1998	115
	A once-enslaved planet condemns Teal'c for the atrocities he once committed under Apophis. He is sentenced to death. However, when the Goa'uld attack, Teal'c saves his accuser's life and proves he is a changed man.
File:Enigma (Stargate SG-1).jpg	Enigma	January 30, 1998	116
	SG-1 rescues a group of highly advanced Tollan. The military and the NID take an interest in their technology, and attempt to imprison them for research purposes before Daniel helps them take refuge with the Nox.
	Solitudes	February 6, 1998	117
	Sam and Jack are stranded on an icy planet when the Stargate malfunctions on their return journey to Earth. However, it turns out that they have merely been redirected to a second Stargate in Antarctica.
File:Tin Man.jpg	Tin Man	February 13, 1998	118
	Without their knowledge, robotic duplicates of SG-1 are made, and are mismatched for the originals. When this is discovered, the androids must accept that they will stay offworld, and the real SG-1 returns home.
File:There But For the Grace of God.jpg	There But For the Grace of God	February 20, 1998	119
	Daniel accidentally finds himself in an alternate universe after encountering a strange alien mirror, and, before he returns, learns that Apophis will attack Earth in ships from a certain Stargate address.
File:Politics (Stargate SG-1).jpg	Politics (Part 1)	February 27, 1998	120
	Senator Robert Kinsey shuts down the Stargate program (as the gate represents a global risk), despite Daniel's warnings that Apophis will attack Earth, and that the Stargate may be Earth's only defense.
File:Within the Serpent's Grasp.jpg	Within the Serpent's Grasp (Part 2)	March 6, 1998	121
	SG-1 uses the Stargate to go to the address Daniel discovered, which turns out to be Apophis' ship, where they find that Skaara has been made host to Apophis' son Klorel. The ship reaches Earth, and the fate of the world hangs in the balance.

Season 2

Pic	Title	Original airdate	#
File:The Serpent's Lair.jpg	The Serpent's Lair (Part 3)	June 26, 1998	201
	Teal'c's former mentor Bra'tac joins their fight and together they embark on a mission of planting bombs to destroy Apophis' ship and halt the attack on Earth. Eventually they destroy the two ships and escape in Death Gliders.
	In the Line of Duty	July 3, 1998	202
	Carter is possessed by a Goa'uld who is discovered. The Goa'uld claims to be a Tok'ra, a legendary faction opposed to the other Goa'uld system lords. The Tok'ra Jolinar is assassinated but in dying saves the life of Samantha Carter.
File:Prisoners (Stargate SG-1).jpg	Prisoners	July 10, 1998	203
	After being sentenced to life imprisonment on another planet, SG-1 escapes with the help of a female inmate named Linnea. After they set her free, they discover she is a mass-murderer known as 'the Destroyer of Worlds'.
File:Gamekeeper (Stargate SG-1).jpg	The Gamekeeper	July 17, 1998	204
	SG-1 discover a world where all the people are enclosed in a virtual reality, believing that their planet is dead. SG-1 become trapped in the virtual reality, but inform the residents that their planet is beautiful again, and they all go free.
File:Need (Stargate SG-1).jpg	Need	July 24, 1998	205
	Offworld, Daniel stops a woman from killing herself; she falls in love with him and uses the narcotic properties of the Sarcophagus to keep him with her, but once home he is rehabilitated and eventually let back into SG-1
File:Thor's Chariot.jpg	Thor's Chariot	July 31, 1998	206
	SG-1 return to Cimmeria to help defend the planet when the Goa'uld invade. They contact Thor who shows himself as an Asgard. He is annoyed with SG-1's interference but comes via ship and eliminates the invasion nevertheless.
File:Message In a Bottle (Stargate SG-1).jpg	Message In a Bottle	August 7, 1998	207
	SG-1 bring back a mysterious sphere which suddenly sprouts rods that impale O'Neill. After attempts to remove it, SG-1 discover it contains the last of an alien race, who are pacified by relocation to a more suitable home than Earth.
File:Family (Stargate SG-1).jpg	Family	August 14, 1998	208
	Bra'tac brings word that Apophis has kidnapped Teal'c's son Rya'c. Returning to Chulak with SG-1, Teal'c finds that his son is brainwashed loyal to Apophis. They resort at last to a zat-blast on him to overcome the brainwashing chemical.
File:Secrets (Stargate SG-1).jpg	Secrets	August 21, 1998	209
	Having to fulfil a promise to Sha're's father Kasuf, Daniel and Teal'c return to Abydos. Upon their arrival, Daniel learns that his wife, after having been captured by the Goa'uld, is now pregnant by Apophis.
File:Bane (Stargate SG-1).jpg	Bane	September 25, 1998	210
	Teal'c is stung by a strange insect while exploring BP6-3Q1. Upon returning to earth, the virus beings changing Teal'c's DNA into its own. He escapes the SGC and develops a friendship with a small scruffy girl, and is ultimately cured.
File:The Tok'ra (Part 1).jpg	The Tok'ra (Part 1)	October 2, 1998	211
	Jolinar ("In the Line of Duty") has left a mental imprint on Carter, who dreams of the Stargate address of the hidden Tok'ra base. While SG-1 find and liaise with the Tok'ra, Carter's father Jacob is dying of cancer.
File:The Tok'ra (Part 2).jpg	The Tok'ra (Part 2)	October 9, 1998	212
	SG-1 offers an alliance with the Tok'ra, but it is turned down because Earth doesn't have enough to offer. Meanwhile, Selmak is a Tok'ra whose host is dying and the alliance deal is re-kindled when Jacob offers himself as a new host.
File:Spirits (Stargate SG-1).jpg	Spirits	October 23, 1998	213
	SG-1 discovers a civilization that follows a Native American religion, and after learning of the SGC's plot to mine trinium, the religion's 'spirits' invade the base. They are revealed as aliens only posing as spirits.
File:Touchstone (Stargate SG-1).jpg	Touchstone	October 30, 1998	214
	A planet called Madrona accuses, SG-1 of stealing 'the Touchstone', they claim that men dressed in SGC uniforms took it. SG-1 suspect that maybe the thiefs are using the second gate, found in Antarctica.
File:The Fifth Race.jpg	The Fifth Race	January 22, 1999	215
	Jack is grabbed by a Repository of the Ancients, and has alien knowledge downloaded into his mind. Before Jack's mind is overrun, he discovers a gate address to the Asgard homeworld, who remove the information from his brain, saving his life.
File:A Matter of Time.jpg	A Matter of Time	January 29, 1999	216
	SG-10 stranded on a planet which is close to a newly formed black hole. The SGC opens the gate to find out what happened, but they can't shut it down afterwards. Soon they realise that since the planet is near to a black hole, it's causing intense gravity groving and time dilation, so if they don't shut down the gate very soon, it will destroy the SGC, and in time the entire Earth.
File:Holiday (Stargate SG-1).jpg	Holiday	February 5, 1999	217
	SG-1 meets an elderly man called Ma'chello who was hunted by the Goa'uld as he invented many Goa'uld-destroying weapons. Daniel and Ma'chello both grasp a device and switch bodies; eventually Ma'chello agrees to switch back, and dies.
File:Serpent's Song.jpg	Serpent's Song	February 12, 1999	218
	Apophis is found, dying, and is brought to the SGC. Sokar tries to attack Earth as he wants him, but is stopped when they hand over the dead Apophis. However, Sokar will use a sarcophagus to revive him and torture him indefinitely.
File:One False Step.jpg	One False Step	February 19, 1999	219
	After a UAV crashes into a large white plant offworld, SG-1 encounters strange inhabitants who appear to be dying en mass. SG-1 discover that the aliens depend on the large plants for survival, and rectify the situation.
File:Show and Tell.jpg	Show and Tell	February 26, 1999	220
	A young boy warns SGC of a plot by invisible aliens (rogue Re'tu) to destroy all humans. They decide his warning is real, and call the Tok'ra for help, who provide TER's that locate the Re'tus already hiding on the base, and eliminate them.
File:1969 (Stargate SG-1).jpg	1969	March 5, 1999	221
	A solar flare sends SG-1 back in time. They meet a young General Hammond, who helps them due to a note ("Help them", plus dates of solar flares). They find the Stargate of 1969 and activate it during another solar flare, returning home.
File:Out of Mind.jpg	Out of Mind (Part 1)	March 12, 1999	222
	O'Neill, Carter and Daniel awaken from stasis in what appears to be the SGC, 80 years in the future. They discover it is actually a Goa'uld hoax by Hathor. Meanwhile, Teal'c leaves the SGC to find SG-1.

Season 3

Pic	Title	Original airdate	#
	Into the Fire (Part 2)	June 25, 1999	301
	The SGC send a rescue mission to Hathor's base to retrieve SG-1, and Jack kills Hathor. By using Tok'ra tunnels already present on the planet, SG-1 escape and return home.
File:Seth.jpg	Seth	July 2, 1999	302
	A Goa'uld named Seth has lived on Earth for thousands of years and now is the leader of a dangerous cult. SG-1 use zats to overcome the cult member's brainwashing, and in the ensuing rescue, Seth is killed by Carter.
	Fair Game	July 9, 1999	303
	The Asgard warn the SGC that the Goa'uld plan an attack on Earth. So SG-1 with the help of the Asgard negotiate with three Goa'uld System Lords to bring Earth into the Protected Planets Treaty. Also Captain Carter is promoted to the rank of Major.
	Legacy	July 16, 1999	304
	SG-1 find the skeletons of several humans and symbiotes, on their return Jackson show signs of schizophrenia. The cause is a Goa'uld-killer of Ma'chello's (having a strange effect on a non-Goa'uld), and the devices are neutralised.
File:Learningcurvestargate.jpg	Learning Curve	July 23, 1999	305
	SG-1 visit a planet where knowledge is harvested through its children. O'Neill and Carter have a profound effect on them, and many begin to 'learn the old way'.
	Point of View	July 30, 1999	306
	Using the mirror from "There But For the Grace of God", an alternate Carter and Kawalsky come to the SGC from an Earth that has been invaded by the Goa'uld. SG-1 save the alternate reality by contacting the Asgard there.
File:Deadman Switch.jpg	Deadman Switch	August 6, 1999	307
	SG-1 is captured by a bounty hunter who uses them to help catch a Tok'ra. The Goa'uld have his race addicted to a drug that can be supplied only by them, but he repents at the last moment and asks Sam to help free him from the drug.
File:Demons (Stargate SG-1).jpg	Demons	August 13, 1999	308
	SG-1 visits a planet ruled by a Goa'uld-infested Unas, who uses the persona of the Devil to keep the residents ruled by fear. They free the people of the 'devil' and instruct them to bury the Stargate.
File:Rules of Engagement.jpg	Rules of Engagement	August 20, 1999	309
	SG-1 discovers a planet where Apophis was training human slaves to infiltrate the SGC. SG-1 show them footage of Apophis dying, and they all renounce him as a false god.
File:Amonet (Stargate).jpg	Forever in a Day	October 8, 1999	310
	After being found Daniel's wife is killed by Teal'c to prevent the Goa'uld controlling her from killing Daniel. Jackson then starts seeing visions of a residual thought transferred to him by Sha're in the last moments - he must find her son.
	Past and Present	October 15, 1999	311
	Ke'ra, an offworlder (actually Linnea from "Prisoners") has tried to slow the aging process but a side-effect has wiped everyone's memories. Linnea is now a different person, and Jackson persuades her not to take a memory-recall drug.
File:Jolinar's Memories.jpg	Jolinar's Memories (Part 1)	October 22, 1999	312
	Jacob/Selmak have been captured by Sokar. Jolinar was the only person ever to escape from Sokar's home moon and Sam has residual memories of the method. SG-1 are captured, and discover that Apophis controls the moon.
File:The Devil You Know.jpg	The Devil You Know (Part 2)	October 29, 1999	313
	SG-1 manage to escape from Netu with Jacob and Selmak and make it back to Earth, using a Tok'ra bomb that blows up the moon and destroys Sokar's ship, killing Sokar with it. Apophis, however, escapes, and has risen again.
File:Foothold.jpg	Foothold	November 5, 1999	314
	Stargate Command is under alien control, and they can look and act just like us. Major Carter must ask an old adversary to help her retake the base.
File:Pretense.jpg	Pretense	January 21, 2000	315
	Skaara/Klorel crash lands on Tollana and the Tollan invite SG-1 to represent Skaara in a trial to decide which has most right to use the body, ultimately the body is Skaara's. Lya of the Nox and SG-1 prevent a Goa'uld attack on Tollana.
File:Urgo stargate.jpg	Urgo	January 28, 2000	316
	The members of SG-1 are implanted with an AI named Urgo. They manage to rectify the problem by visiting Urgo's creator, who implants Urgo in himself instead to improve his personality.
File:A Hundred Days.jpg	A Hundred Days	February 4, 2000	317
	A friendly planet will be destroyed by meteorite bombardment. SGC move most of the population to another planet but O'Neill is trapped. SG-1 use a particle beam to breach the iris that formed over the offworld gate, and retrieve O'Neill.
File:Shadesofgreystargate.jpg	Shades of Grey	February 11, 2000	318
	After stealing technology from the Tollan, Jack O'Neill is forced to retire. He joins a rogue SG team to obtain technology by any means. However, Jack was actually on a secret mission as a double-agent to find and capture the rogues.
File:New Ground.jpg	New Ground	February 18, 2000	319
	SG-1 visit a planet in the middle of a Cold War and are mistaken for infiltrators. They are captured on the side which they have just proved wrong (they believe a Goa'uld created humans on their world). With the help of a local, SG-1 escape.
File:Maternal Instinct.jpg	Maternal Instinct	February 25, 2000	320
	Jackson knows that the Harcesis is on a planet called Kheb, Bra'tac knows how to get there. They find a Zen monk who teaches Daniel about the ways of Ascension and an Ascended being (Oma Desala) saves the child.
File:Crystalskullstargate.jpg	Crystal Skull	March 3, 2000	321
	SG-1 find a Mayan ziggurat, inside is a crystal skull that makes Daniel a 'ghost'. Daniel's grandfather Nick found a similar skull in Belize and helps out. When they return to the planet giant aliens arrive and return Daniel to normality.
	Nemesis (Part 1)	March 10, 2000	322
	Thor's starship, which has been infected by Replicators. In order to keep it from landing on earth SG-1 disable the deceleration engines so the ship burns up in the atmosphere and crashes in the Pacific - but one replicator remains.

File:StargateSg1Season3SyndicationRatings.gif

Niesen ratings for the first-time run in US syndication, using the 2nd number (percent of households out of the total households that had their TV on at the time that watched the show).

Season 4

Pic	Title	Original airdate	#
File:Small Victories 1.png	Small Victories (Part 2)	June 30, 2000	401
	The replicator on Earth has taken over a submarine, O'Neill and Teal'c neutralise the threat. Carter goes with Thor to defend the Asgard homeworld from the Replicators. They use the Asgard's newest ship (named, The O'Neill) to lure them into hyperspace, where the ship is blown up.
File:The Other Side.png	The Other Side	July 7, 2000	402
	Humans on another planet contact the SGC for help; they are fighting a war and have run out of food and fuel supplies. SG-1 travels to the planet Euronda where they make an alliance to trade heavy water for advanced technology to combat the Goa'uld. Daniel feels that the people aren't telling them everything but Jack doesn't want to jeopardize their alliance.
File:Upgrades.png	Upgrades	July 14, 2000	403
	O'Neill, Carter, and Jackson are given alien arm devices which greatly increase their strength and speed but, as it turns out, utilizes a virus, which eventually is neutralized by the immune system, causing SG-1 to lose all the additional strength they gain. Unfortunately, they don't realize this until they are already in the middle of a Goa'uld site. One of the few episodes in which O'Neill showed his emotional attachment to Carter.
File:Crossroads.png	Crossroads	July 21, 2000	404
	SGC is visited by Shaun'ac, a female Jaffa who has discovered how to communicate with her larval Goa'uld symbiote.
File:Divide and Conquer.png	Divide and Conquer	July 28, 2000	405
	The Goa'uld have a new weapon - subconsciously programmed automatons, the Tok'ra have a test but when it is applied to the staff of the SGC, Carter and O'Neill are found to be affected.
File:Windowofopportunitystargate.JPG	Window of Opportunity	August 4, 2000	406
	After an encounter with an Ancient time device, Colonel O'Neill and Teal'c get trapped in a time loop that only they know about.
File:Watergatestargate.jpg	Watergate	August 11, 2000	407
	The Russians have been using the second Stargate in secret, but, after dialing a world completely submerged underwater, they lose contact with their Stargate facility and approach SGC for help.
File:The First Ones.png	The First Ones	August 18, 2000	408
	While helping with the excavation of fossilized Goa'uld, Daniel Jackson is captured by an Unas. The rest of SG-1 then tries to find him.
File:Scorched Earth.png	Scorched Earth	August 25, 2000	409
	After transferring the population of one alien planet to another because they were suffering from the effects of radiation, SGC discover that an alien spaceship is transforming the planet into a hostile environment.
File:Beneath The Surface.jpeg	Beneath the Surface	September 1, 2000	410
	SG-1 have had their memories altered and been put to work in an underground industrial complex. Together, they must recover their memories in order to escape.
File:Point of No Return.png	Point of No Return	September 8, 2000	411
	A man by the name of Martin Lloyd claims to not only to have knowledge of the Stargate, but that he's from outer space.
File:Tangent (Stargate SG-1).jpg	Tangent	September 15, 2000	412
	Teal'c and O'Neill test-fly the first experimental aircraft based on Earth and Goa'uld technologies, but soon someone else takes control of the X-301. Sam and Daniel enlist Jacob/Selmak's help to rescue them.
File:The Curse.png	The Curse	September 22, 2000	413
	Daniel's old professor has died. He goes to the funeral and discovers a controversy surrounding the professors' death. SG-1 discover that a Goa'uld may have escaped from an ancient canopic jar the professor's team was studying.
File:The Serpents Venom.png	The Serpent's Venom	September 29, 2000	414
	Her'ur and Apophis are meeting to agree an alliance and the Tok'ra and SGC want to sabotage the meeting. Things become more complicated when SG-1 discover Her'ur has captured Teal'c and intends to use him as a peace offering. Only a suppose friend on the inside can help Teal'c
File:Chain Reaction.png	Chain Reaction	January 5, 2001	415
	Hammond resigns as head of the SGC but O'Neill suspects there is more to it than Hammond will admit and is determined not to let the matter rest.
File:2010.png	2010	January 12, 2001	416
	In an alternate timeline, Earth has defeated the Goa'uld with the help of the Aschen. However, they possess a dark secret which will destroy mankind. SG-1 must send a message back ten years to make sure it never happens.
File:Absolutepowerstargate.jpg	Absolute Power	January 19, 2001	417
	The Harcesis has come to visit SGC and somehow puts Jackson in a coma like state. Meanwhile Jackson is experiencing what it would be like to have all the knowledge of the Goa'uld.
File:The Light.png	The Light	January 26, 2001	418
	SGC have discovered a world abandoned by the Goa'uld where there is a room with a beautiful light display. Later they find that the light may have an insidious effect.
File:Prodigy.png	Prodigy	February 2, 2001	419
	Carter discovers a brilliant USAF cadet while giving a lecture at an academy but the cadet seems to have a problem with authority. Carter decides to show her there are possibilities she isn't aware of. A planet of energy formed creatures take offense to the Tau'ri and Carter and the cadet must work on a solution to get everyone home.
	Entity	February 9, 2001	420
	SGC send a probe through the stargate to a new planet a seem to have found a world inhabited by electronic lifeforms. The base computer system is compromised by what is apparently a very advanced computer virus.
File:Double Jeopardy.png	Double Jeopardy	February 16, 2001	421
	SG-1 works with their robot duplicates to free a world from the rule of Cronus.
File:Exodusstargate.jpg	Exodus (Part 1)	February 23, 2001	422
	Apophis is on his way to the planet the Tok'ra are using as a base, but Carter and Jacob/Selmak attempt to wipe out Apophis' fleet by sending a Stargate linked to a black hole into the local sun.

Season 5

Pic	Title	Original airdate	#
File:Enemiesparttwostargate.jpg	Enemies (Part 2)	June 29, 2001	501
	After having been sent to a distant galaxy, the team is captured by Apophis, who has brainwashed Teal'c. Replicators overrun Apophis' ship and SG-1 escape before he dies as the ship crashes into Delmak.
	Threshold (Part 3)	July 6, 2001	502
	To end Teal'c's newly formed loyalty to Apophis, Bra'tac uses an old Jaffa ritual that will either bring Teal'c back, or kill him. Now Teal'c must relive his memories of being in the service of Apophis and realise that he is a false god.
	Ascension	July 13, 2001	503
	After returning from a planet full of ruins, Carter is visited by a mysterious young man who can walk through solid objects. But everyone believes that she is seeing things.
File:The Fifth Man.jpg	The Fifth Man	July 20, 2001	504
	Colonel O'Neill remains on an alien world to protect Lieutenant Tyler, a fifth member of SG-1 that only SG-1 members can recall
File:Red Sky.jpg	Red Sky	July 27, 2001	505
	After Major Carter overrides some of the security dialing protocols on the Stargate, SG-1 discovers that the sun of the planet they have visited has been shifted to the infra red end of the spectrum (which will doom all life on the planet), and that they are responsible. The planet's inhabitants are worshipers of the Asgard, but the Asgard refuse to help.
	Rite of Passage	August 3, 2001	506
	Dr. Frasier's adopted daughter, Cassandra, develops telekinetic abilities, but the strain of producing so much energy is causing multiple organ failure. SG-1 must make a deal with a forgotten enemy in order to save her but at a terrible price.
File:Beast of Burden.jpg	Beast of Burden	August 10, 2001	507
	Chaka, the Unas which Dr. Jackson befriended, has been kidnapped and taken to a planet where humans use them for slave labour. Jackson wants to rescue Chaka but O'Neill is reluctant to interfere.
File:The Tomb.jpg	The Tomb	August 17, 2001	508
	SG-1 gets trapped in an ancient ziggurat with a Russian team and an alien creature possessed by a Goa'uld.
File:Between Two Fires.jpg	Between Two Fires	August 24, 2001	509
	The Tollan, in a highly unusual change of policy, agree to share advanced technology with Earth. But SG-1 soon learns that there's something else going on.
File:2001 (Stargate SG-1).jpg	2001	August 31, 2001	510
	SG-1 discover an agricultural planet inhabited by the Volians who introduce them to their more technologically advanced neighbours - the Aschen. The Aschen offer an alliance with Earth, but can they be trusted.
File:Desperate Measures.jpg	Desperate Measures	September 7, 2001	511
	Samantha Carter is kidnapped by a dying millionaire, forcing Jack O'Neill to team up with Harry Maybourne in order to find her.
File:Wormholextremestargate.jpg	Wormhole X-Treme!	September 8, 2001	512
	When the SGC finds out that a television show is virtually identical to their operations SG-1 investigate. They find that an alien named Martin Lloyd, first seen in Point of No Return, is giving the producers all their ideas.
	Proving Ground	March 8, 2002	513
	SG-1 is running training simulations for a group of new recruits. But then things begin to get more serious when aliens invade.
File:48 Hours.jpg	48 Hours	March 15, 2002	514
	While escaping through the Stargate to the SGC, Teal'c fails to make it through the Stargate before it deactivates. If the wormhole is re-opened again his pattern will be lost forever. Daniel must make a deal with the Russians for help.
File:Summit (Stargate SG-1).jpg	Summit (Part 1)	March 22, 2002	515
	There is a truce among the Goa'uld and the System Lords meet on a heavily guarded space station. The Tok'ra plan to kill them all but require a human who can speak fluent Goa'uld and Dr. Daniel Jackson is the only qualified candidate.
	Last Stand (Part 2)	March 29, 2002	516
	A powerful System Lord shows himself for the first time in a thousand years who offers to destroy the Tau'ri and Tok'ra. Meanwhile, SG-1 and Lt. Elliot/Lantash are trying to escape the Tok'ra base.
File:Fail Safe.jpg	Fail Safe	April 5, 2002	517
	SG-1 must stop a rogue asteroid on a collision course with Earth using their Goa'uld cargo ship.
	The Warrior	April 12, 2002	518
	The Jaffa Rebellion have a new leader who seems almost too good to be true. SG-1 is sent on a mission to negotiate an alliance. But when Teal'c is sent on a suicide mission against the Goa'uld system lord Yu, he finds that the new leader isn't what he seems.
	Menace	April 26, 2002	519
	The team finds an android that somehow managed to survive a Replicator attack. They find out she is the mother of all Replicators, but has the mentality of a young child.
	The Sentinel	May 3, 2002	520
	SG-1 must enlist the help of two of Harry Maybourne's rogue team, from the episode "Shades of Grey," in order to fix a helpless planet's protective device from the Goa'uld.
	Meridian	May 10, 2002	521
	Daniel Jackson is exposed to fatal radiation poisoning while trying to prevent the development of nuclear weapons on a planet; the government responsible for the weapons development accuse him of attempting to sabotage the device.
File:Revelations (Stargate SG-1).jpg	Revelations	May 17, 2002	522
	An Asgard scientist is stranded on a planet under attack by the Goa'uld. As the Asgard have no spare ships at the moment they had no choice but to ask the SGC to help using their salvaged Goa'uld cargo ship.

Season 6

Pic	Title	Original airdate	#
File:Redemption part 1 (Stargate SG-1).jpg	Redemption (Part 1)	June 7, 2002	601
	Anubis has found an ancient weapon capable of destroying the Stargate and Earth along with it by slowly building up an overcharge of energy in its superconducting ring.
File:Redemption part 2 (Stargate SG-1).jpg	Redemption (Part 2)	June 14, 2002	602
	Jonas comes up with a plan to prevent the Stargate from destroying the Earth. Meanwhile, Teal'c is preparing to attack the planet on which Anubis's weapon is based.
File:Descent (Stargate SG-1).jpg	Descent	June 21, 2002	603
	SG-1 attempts to salvage a Goa'uld mothership which has been mysteriously abandoned in space near Earth. Unfortunately, the ship crashes in the ocean, and SG-1 later discover that Thor's consciousness is still in the central computer.
File:Frozen (Stargate SG-1).jpg	Frozen	June 28, 2002	604
	The Antarctic team investigating the site where the second Stargate was found discovers a frozen Ancient, and subsequently, the team starts to suffer the effects of a deadly virus.
File:Nightwalkers (Stargate SG-1).jpg	Nightwalkers	July 12, 2002	605
	Bizarre activity in small-town America prove to be the result of Goa'uld activity.
File:Abyss (Stargate SG-1).jpg	Abyss	July 19, 2002	606
	O'Neill has been captured by Ba'al but is being held in a fortress too well protected for SGC to help. However, Jonas believes that Lord Yu might be persuaded to lend assistance.
File:Shadow play (Stargate SG-1).jpg	Shadow Play	July 26, 2002	607
	The Kelownan government contacts the SGC offering to exchange Naquadria for advanced technology. Jonas' old professor asks him to help a secret resistance group and prevent a world war.
File:The other guys (Stargate SG-1).jpg	The Other Guys	August 2, 2002	608
	Dr. Felger worships SG-1, and when he has the chance to rescue them from a Goa'uld mothership, he doesn't hesitate.
File:Allegiance (Stargate SG-1).jpg	Allegiance	August 9, 2002	609
	The Jaffa rebellion, the Tok'ra and the SGC are temporarily forced to share the Alpha Site when the Tok'ra are attacked. Unfortunately, suspicion between the Tok'ra and the Jaffa turns hostile when a series of bodies are discovered.
File:Cure (Stargate SG-1).jpg	Cure	August 16, 2002	610
	SG-1 is negotiating with a friendly world that is offering a wonder drug called Tretonin in exchange for gate addresses, but SG-1 cannot understand why they want the addresses to Goa'uld homeworlds despite SG-1's warnings.
File:Prometheus (Stargate SG-1).jpg	Prometheus (Part 1)	August 23, 2002	611
	A reporter has information about the Stargate Program and threatens to broadcast it on television. The SGC offers a deal to allow her access to the Prometheus on the condition that nothing is aired until the Stargate Program is made public.
File:Unnatural selection (Stargate SG-1).jpg	Unnatural Selection (Part 2)	January 10, 2003	612
	The Asgard have called all the Replicators in the galaxy to one planet, but unfortunately, the time dilation device which was meant to trap them on the planet has failed to activate and the Asgard want SG-1 to find out why.
File:Sight unseen (Stargate SG-1).jpg	Sight Unseen	January 17, 2003	613
	On a deserted planet, SG-1 discovers a piece of Ancient technology, but, when it is moved to Earth for study, people begin to have inexplicable hallucinations.
File:Smoke and mirrors (Stargate SG-1).jpg	Smoke & Mirrors	January 24, 2003	614
	Senator Kinsey is shot, and all the evidence seems to show that O'Neill was the assassin.
File:Paradiseloststargate.jpg	Paradise Lost	January 31, 2003	615
	Maybourne offers to help the SGC find a cache of advanced alien weapons, but he is not telling them everything he knows.
File:Metamorphosis (Stargate SG-1).jpg	Metamorphosis	February 7, 2003	616
	The Russian team discovers a planet on which Nirtti has been experimenting on the human population to create the perfect host.
File:Disclosure (Stargate SG-1).jpg	Disclosure	February 14, 2003	617
	The Americans and the Russians reveal the existence of the Stargate to the Chinese, French, and British governments. Senator Kinsey tries to use the meeting to hijack the Program, but Hammond has a card up his sleeve.
File:Forsaken (Stargate SG-1).jpg	Forsaken	February 21, 2003	618
	SG-1 finds a wrecked spacecraft, the crew of which have been fighting off the aggressive natives of the planet ever since they crashed - or so they claim.
File:The changeling (Stargate SG-1).jpg	The Changeling	February 28, 2003	619
	Teal'c finds himself swapping between different realities, and only Jackson seems to have any continuity.
File:Memento (Stargate SG-1).jpg	Memento	March 7, 2003	620
	On its maiden flight, the Prometheus's reactor overloads, and SG-1 must find the Stargate buried on an alien planet in order to obtain spare parts from Earth.
File:Prophecy (Stargate SG-1).jpg	Prophecy	March 14, 2003	621
	SG-1 finds a planet where the population worship Ba'al and work in the mines to provide his representative "Lord Mot" with a tribute of Naquidah. SG-1 intends to stop him, but things get complicated when Jonas starts seeing visions that could kill him.
	Full Circle	March 21, 2003	622
	Daniel Jackson contacts Jack O'Neill and tells him that Anubis has located the Eye of Ra, an enormously powerful weapon. SG-1 must get the Eye from Abydos, before Anubis. Anubis appears over the planet and threatens to destroy it.

Season 7

Full Circle was originally written as a Series Finale that would be followed up by a second Stargate film and a spin-off series.

Pic	Title	Original airdate	#
File:Fallen (Stargate SG-1).jpg	Fallen (Part 1)	June 13, 2003	701
	Jackson is found living on an alien planet but he has total amnesia. Nevertheless he helps SG-1 to destroy Anubis's superweapon.
File:Homecoming (Stargate SG-1).jpg	Homecoming (Part 2)	June 13, 2003	702
	With knowledge of naquadriah, Anubis attacks Kelowna and SG-1 must come up with a plan to save them.
File:Fraglie balance (Stargate SG-1).jpg	Fragile Balance	June 20, 2003	703
	O'Neill wakes up one morning to find himself 30 years younger, much to the annoyance of the Colonel. It is soon learned that the same process that caused him to get younger is also causing him to die.
File:Orpheus (Stargate SG-1).jpg	Orpheus	June 27, 2003	704
	Teal'c is shot by a Jaffa as they retreat through the gate and his self-confidence is greatly wounded. Meanwhile, Jackson remembers where Ry'ac and Bra'tac are held prisoner and Teal'c must regain his confidence if they are to be saved.
File:Revisions (Stargate SG-1).jpg	Revisions	July 11, 2003	705
	P3X-289 has a toxic atmosphere but there is a forcefield dome protecting an idyllic village. That is, idyllic except for the fact that it's inhabitants are disappearing one by one without noticing it themselves.
File:Lifeboat (Stargate SG-1).jpg	Lifeboat	July 18, 2003	706
	SG-1 find a crashed spaceship and Jackson has multiple consciousnesses implanted in his mind.
File:Enemy mine (Stargate SG-1).jpg	Enemy Mine	July 25, 2003	707
	SGC have found a planet with rich deposits of Naqahdah but the local population of Unas do not welcome the mining team.
File:Space race (Stargate SG-1).jpg	Space Race	August 1, 2003	708
	Carter helps Warrick to enter his spaceship in a dangerous race, the prize is a lucrative contract.
File:Avenger 2.0 (Stargate SG-1).jpg	Avenger 2.0	August 8, 2003	709
	Felger is about to be fired and desperate to persuade Hammond to give him another chance. He invents a computer virus able to deactivate a stargate. However the virus spreads on its own and the entire network is shut down.
File:Birthright (Stargate SG-1).jpg	Birthright	August 15, 2003	710
	SG-1 meet a group of all female Jaffa who have set up their own rebel base.
File:Evolution part 1 (Stargate SG-1).jpg	Evolution (Part 1)	August 22, 2003	711
	Teal'c and Bra'tac are attacked by a black armoured warrior who is found to be a human Goa'uld mutant created by Anubis. Jackson visits Honduras to find a hidden artifact which may hold the key to defeating them.
File:Evolution part 2 (Stargate SG-1).jpg	Evolution (Part 2)	January 9, 2004	712
	O'Neill goes to Honduras to rescue Jackson and in the meantime Carter, Jacob/Selmak and Teal'c must destroy the facility where Anubis is creating the new warriors.
File:Grace (Stargate SG-1).jpg	Grace	January 16, 2004	713
	Carter is on Prometheus while the ship is on its way to earth, and is attacked from a spaceship of a type they have never seen before. They try to escape by hiding in a nebula but all the crew except Carter disappear.
File:Fallout (Stargate SG-1).jpg	Fallout	January 23, 2004	714
	Jonas informs SGC that Naqahdriah is created in a catalytic reaction and the process is ongoing on Kelowna. If the reaction goes deep enough, heat and pressure will destabilise the Naquadria and it will blow the planet apart.
File:Chimera (Stargate SG-1).jpg	Chimera	January 30, 2004	715
	Osiris has been visiting Jackson by night and using a mind control device to try and find the Lost City of the Ancients. SG-1 decide to attempt to capture her. However, Carter's new boyfriend Pete might get in the way.
File:Death knell (Stargate SG-1).jpg	Death Knell	February 6, 2004	716
	The Alpha Site, where a prototype anti-supersoldier weapon is being created, is attacked by one of Anubis's drones, Carter escapes but she is on her own and the drone is hunting her.
File:Heroes part 1 (Stargate SG-1).jpg	Heroes (Part 1)	February 13, 2004	717
	A film crew arrive at SGC to make a documentary but find their welcome less than enthusiastic.
File:Heroes part 2 (Stargate SG-1).jpg	Heroes (Part 2)	February 20, 2004	718
	Help is sent to rescue of an SG member who is unable to get to the gate. However, on the mission, a member of the SGC is killed.
File:Resurrection (Stargate SG-1).jpg	Resurrection	February 27, 2004	719
	SGC find the base of a rogue NID operation which has been attempting to mix the DNA of humans and Goa'uld, but all the agents except one have been killed.
File:Inauguration (Stargate SG-1).jpg	Inauguration	March 5, 2004	720
	A new President has been elected and must be briefed on the Stargate Program. However, as usual, Senator Kinsey has his own agenda.
File:Lost city part 1 (Stargate SG-1).jpg	Lost City (Part 1)	March 12, 2004	721
	The SGC locates a Repository of the Ancients and when Anubis attacks O'Neill downloads their knowledge into his brain again. Finally, Bra'tac warns SG-1 that Anubis plans an attack on Earth. Hammond is replaced by Dr. Elizabeth Weir.
File:Lost city part 2 (Stargate SG-1).jpg	Lost City (Part 2)	March 19, 2004	722
	As Anubis' fleet arrives, SG-1 flies to a planet with an Ancient outpost where they locate another outpost in Antarctica back on Earth. From there O'Neill is able to destroy Anubis' fleet using the Ancient weapon.

Season 8

At this point in the progression of the seasons of Stargate SG-1, the show was supposed to end, to be replaced with the spin-off series Stargate Atlantis, which begins where the SG-1 Season 7 left off. However, SG-1 was not cancelled. From Season 8 onwards, however, there are frequent references to the plot, or at least the pilot, of Stargate Atlantis. All that needs to be understood is that the Lost City of the Ancients was indeed found - a city called Atlantis (which founded the Earth-based myth) - on a planet in the Pegasus Galaxy which requires a ZPM to reach.

Pic	Title	Original airdate	#
File:New Order (Part 1).jpg	New Order (Part 1)	July 9, 2004	801
	Sam and Teal'c go to find Thor, who is guarding the Replicators, which escape. Three System Lords meet with the SGC after their defeat of Anubis. Sam is abducted by Fifth. O'Neill is awakened and creates a device of Ancient design.
File:New Order (Part 2).jpg	New Order (Part 2)	July 9, 2004	802
	Orilla is saved from Replicators when Jack uses his Ancient device but some Replicators escape after Sam is released in Fifth's goodwill. Jack is promoted to the position of Brigadier General in place of Weir and Hammond.
File:Lockdownstargate.jpg	Lockdown	July 23, 2004	803
	An outbreak of disease is in fact the effect of possession by the ethereal remains of Anubis. Anubis escapes the SGC through the Stargate, though Sam alters his destination to a frozen, barren planet.
File:Zero Hour (Stargate SG-1).jpg	Zero Hour	July 30, 2004	804
	When SG-1 goes missing, Ba'al demands a ransom. Camulus gives the SGC a ZPM, but it is booby trapped. Camulus makes a deal to return to Ba'al on an assassination mission. Ba'al was bluffing: SG-1 returns late from their mission.
File:Icon (Stargate SG-1).jpg	Icon	August 6, 2004	805
	Daniel is trapped offworld when an outbreak of civil war occurs. Daniel manages to coordinate a secret strategic attack from the SGC by sending a radio message through the Stargate in Goa'uld, and is later rescued.
File:Avatarstargate.jpg	Avatar	August 13, 2004	806
	Teal'c's is trapped in a VR-training machine that delivers ever increasing electrical shocks when he fails his objectives. Teal'c is in danger of cardiac arrest so Daniel enters the game in an attempt to save Teal'c and together they win.
File:Sg1-s08e07-0.jpg	Affinity	August 20, 2004	807
	Teal'c moves into an off-base apartment where he becomes involved with Krista, his neighbor, who has an abusive boyfriend, Teal'c is charged with his murder and Daniel disappears while trying to prove Teal'c innocent.
File:Covenantstargate.jpg	Covenant	August 27, 2004	808
	Alec Colson, a powerful businessman, states on TV that aliens exists and they've already attacked Earth once and multiple governments are aware of this fact. Also, he states that he has proof and that he will show it to the public if the governments involves don't tell the truth in the next 24 hours. When the time expires he shows a living asgard to the media.
File:Sg1-s08e09-0.jpg	Sacrifices	September 10, 2004	809
	Rya'c plans to marry a woman of the Hak'tyl which makes Teal'c angry. Ishta brings the Hak'tyl to the SGC because they believe that they have been compromised. Carter attempts to find a suitable planet for them. Moloc captures Ishta.
File:Sg1-s08e10-0.jpg	Endgame	September 17, 2004	810
	Having recently acquired the Tok'ra symbiote poison, The Trust plans to steal the stargate and eliminate the Jaffa.
File:Gemini (Stargate SG-1).jpg	Gemini	January 21, 2005	811
	RepliCarter informs SGC that Fifth has granted all Replicators immunity to Jack's disruptor, and promises to help them modify the weapon. In fact her presence was needed to develop the immunity. She destroys Fifth, and escapes.
File:Prometheusunboundstargte.jpg	Prometheus Unbound	January 28, 2005	812
	Prometheus's crew are incapacitated and removed, save Daniel, when it is hijacked by Vala, a pirate. Vala wishes to trade the ship for Naqahdah, but Daniel succeeds in retaking control of the ship although Vala escapes.
File:Itsgoodtobekingstargate.jpg	It's Good to Be King	February 4, 2005	813
	SG-1 finds that Harry Maybourne has become King on the planet where he took forced retirement. The planet is now under a Goa'uld threat, but Maybourne has found writings by a time-traveling Ancient that prophesy SG-1 will defeat Ares.
File:Full Alert (Stargate SG-1).jpg	Full Alert	February 11, 2005	814
	Russia and the United States reach DEFCON 1 because Goa'uld may have compromised both governments via The Trust which has been entirely assimilated. War is avoided, though Robert Kinsey, now a Goa'uld, escapes.
File:Citizenjoestargate.jpg	Citizen Joe	February 18, 2005	815
	A man with the ATA Gene has his life ruined when through an Ancient device, he begins to have visions of whatever Jack O'Neill does. His life is given back to him when O'Neill informs his nearly-divorced wife of what had been going on.
File:Reckoning1stargate.jpg	Reckoning (Part 1)	February 25, 2005	816
	Teal'c is preparing the Jaffa rebellion to capture Dakara. Daniel is abducted by RepliCarter so she can discover the location of the Dakara Superweapon in his subconscious. Ba'al also moves his forces to Dakara by the order of Anubis.
File:Reckoning2stargate.jpg	Reckoning (Part 2)	March 4, 2005	817
	Daniel has discovered a way to halt the Replicators long enough for Sam and Ba'al, to use a combination of the device that dials every gate in the galaxy and the Superweapon to destroy all Replicators, but RepliCarter kills Daniel Jackson.
File:Threadsstargate.jpg	Threads	March 11, 2005	818
	Daniel Jackson must choose death or powerless Ascension whilst Anubis plans to end all life in the galaxy using the Dakara Superweapon until Oma Desala stops him. Jacob Carter and Selmak die. Daniel is returned to human form on Earth.
File:Moebius1stargate.jpg	Moebius (Part 1)	March 18, 2005	819
	SG-1 uses an Ancient Puddle Jumper to time-travel back to ancient Egypt to recover a ZPM to help Atlantis. However, by forcing Ra to leave with the Stargate at Giza, they alter the future and the SGC doesn't exist.
File:Moebius2stargate.jpg	Moebius (Part 2)	March 25, 2005	820
	An alternate-reality SG-1 must go back in time and fix the past to save the future. In the process, the team must re-recruit Teal'c and find the real Daniel Jackson, who is still in ancient Egypt. Alternate-timeline Jack and Carter express their love.

Season 9

After the climax of Season 8, the producers of the show were unsure of whether or not SG-1 would continue. However, after it was indeed renewed for Season 9, with both the Goa'uld and Replicators defeated the show adopted a more powerful enemy, a revived style, and an overall new atmosphere. This season is also marked by the departure of Richard Dean Anderson. The show is still dealing with what it is to be a god, or what it is to deserve worship, as one of its main themes. In addition, Season 9 begins greater intertwining with the plot of Stargate Atlantis.

Pic	Title	Original airdate	#
File:Sg1-s09e01-0.jpg	Avalon (Part 1)	July 15, 2005	901
	Lt. Colonel Cameron Mitchell joins SGC as leader of SG-1 but finds the original SG-1 has disbanded. Vala Mal Doran arrives with an artifact which could reveal an ancient treasure, Mitchell hopes the search will bring SG-1 back together.
File:Sg1-09e02-0.jpg	Avalon (Part 2)	July 22, 2005	902
	Using an Ancient long-range communication, Daniel and Vala are given control of the bodies of two people in a distant galaxy. What they find is not good.
File:Sg1-09e03-0.jpg	Origin (Part 3)	July 29, 2005	903
	With knowledge of life in the Milky Way galaxy, the Ori begin to send Priors through the stargate.
File:Sg1-09e04-0.jpg	The Ties That Bind	August 5, 2005	904
	Daniel, Teal'c, Mitchell, and Vala go on a series of quests in hopes of finding out how to eliminate the lingering effects of Vala's arm devices.
File:Sg1-09e05-0.jpg	The Powers That Be	August 12, 2005	905
	SG-1 is tricked into going to the planet previously ruled by the Goa'uld who controlled Vala, and the visit happens at the same time as a visit from a prior.
File:Sg1-09e06-0.jpg	Beachhead	August 19, 2005	906
	Samantha Carter returns to Stargate Command when the Ori seize control of a planet, using previously unimaginable technology to attempt to gain a foothold in our galaxy.
File:Sg1-09e07-0.jpg	Ex Deus Machina	August 26, 2005	907
	It is learned that Ba'al is now living on earth, and threatens to blow up a naqahdah bomb if he is not allowed to live in peace.
File:Sg1-s09e08-0.jpg	Babylon	September 9, 2005	908
	Colonel Mitchell is captured by a group of legendary Jaffa after SG-1 attempts to contact them.
File:Sg1-s09e09-0.jpg	Prototype	September 16, 2005	909
	An advanced human, believed to have be experimented on by Anubis is discovered to be something more.
File:Sg1-s09e10-0.jpg	The Fourth Horseman (Part 1)	September 16, 2005	910
	While a former ally of the SGC joins the Ori, Orlin returns to help create a cure for the virus spread by the priors.
File:Sg1-s09e11-0.jpg	The Fourth Horseman (Part 2)	January 6, 2006	911
	While Orlin is working on a cure for the Prior plague, Mitchell and Daniel capture a Prior on the Sodan homeworld and Teal'c tries to stop Gerak from corrupting all Jaffa.
File:Sg1-s09e12-0.jpg	Collateral Damage	January 13, 2006	912
	The team encounters a new civilization capable of manipulating memories and Mitchell is accused of a murder he did not commit.
File:Sg1-s09e13-0.jpg	Ripple Effect	January 20, 2006	913
	Multiple SG-1s show up at Stargate Command, leading the "real" team to conclude that they have each been inadvertently displaced from different parallel realities.
File:Sg1-s09e14-0.jpg	Stronghold	January 27, 2006	914
	Ba'al brainwashes members of the Jaffa High Council to thwart their move toward democracy. Cameron Mitchell faces a tough decision when he learns that an old friend is about to die.
File:Sg1-s09e15-0.jpg	Ethon	February 3, 2006	915
	Daniel is imprisoned on a world under the influence of the Ori, and the Prometheus is caught in a firefight when SG-1 tries to rescue him.
File:Sg1-s09e16-0.jpg	Off the Grid	February 10, 2006	916
	SG-1 is captured on an alien world after a deal with the Lucian Alliance goes bad ... and the planet's Stargate goes missing.
File:Sg1-s09e17-0.jpg	The Scourge	February 17, 2006	917
	A tour of an off-world research base for a group of foreign diplomats turns dangerous when an insidious insect species gets loose.
File:Sg1-s09e18-0.jpg	Arthur's Mantle	February 24, 2006	918
	Mitchell and Carter are shifted to another dimension, making them invisible to everyone at the S.G.C. Teal'c and SG-12 discover that the Sodan have been brutally attacked.
File:Sg1-s09e19-0.jpg	Crusade	March 3, 2006	919
	Vala Mal Doran makes contact with Stargate Command from the Ori home galaxy, and tells the story of her life undercover in a village of followers building the Ori's invasion fleet.
File:Sg1-s09e20-0.jpg	Camelot	March 10, 2006	920
	SG-1 discovers the village of Camelot on an alien world, and must face Merlin's security system when they go in search of an Ancient weapon. And the Ori invasion begins

Season 10

Filming of Season 10 of SG-1 is finished; but the details about episodes which have not aired yet (such as title, synopsis, and order) are subject to change.

Pic	Title	Original airdate	#
File:Adria sat on a bed.jpg	Flesh and Blood	July 14, 2006	1001
	As the Ori invade the Jaffa planet Chulak, Vala and Daniel must deal with their leader: Vala's young daughter Adria -an Orici, rapidly aged by the Ori to become the leader of their invading fleet.
File:Sg1-s10e02-0.jpg	Morpheus	July 21,2006	1002
	The team goes off-world and ends up in a mess of trouble. Meanwhile, Landry is faced with having to decide whether or not Vala can be trusted to remain at the SGC.
File:Stargate SG-1 - 10x03.jpg	The Pegasus Project	July 28,2006	1003
	SG-1 visits Atlantis in the hopes of finding a new lead on Merlin's weapon (which can be used to destroy ascended beings) and dealing with the Supergate. They find more than they ever expected.
File:Sg1-s10e04-0.jpg	Insiders	August 4,2006	1004
	Ba'al contacts the SGC and asks them to capture his rebellious clones, in exchange he offers information about the whereabouts of Merlin's weapon. In the meantime, SG-1 is trying to figure out which Ba'al is the real one.
File:Sg1-s10e05-0.jpg	Uninvited	August 11,2006	1005
	A creature appears on off-world planets visited by SG teams and wreaks havoc. Things get worse when another creature appears in the woods on Earth where Mitchell and Landry are spending some "quality time".
File:Sg1-s10e06-0.jpg	200	August 18,2006	1006
	Martin Lloyd contacts the SGC, looking for their assistance in writing a feature movie to follow up Wormhole X-treme, and General Jack O'Neill makes a return.
File:Dakara weapon in action.jpg	Counterstrike	August 25,2006	1007
	Deadly battles erupt between the Ori, led by Adria, and the Jaffa, after 100,000 villagers are wiped out by a powerful energy wave which Adria believes was SG-1's doing. She captures Daniel and Vala and uses her powers against them to determine the nature of the weapon.
File:Sg1-s10e08-0.jpg	Memento Mori	September 8, 2006	1008
	Vala takes a job as a waitress, after having a meal one night and then trying to get away without paying. The fact is, she's completely forgotten who she is or why she's here - and she begins piecing herself back together.
File:Odyssey Under Fire.jpg	Company of Thieves	September 15, 2006	1009
	Cameron Mitchell infiltrates the Lucian Alliance to save his friends from being crossfire in a deadly civil war.
File:Sg1-s10e10-0.jpg	The Quest (Part 1)	September 22, 2006	1010
	SG-1 continues its search for the anti-Ori weapon, whilst Ba'al appears to be one step ahead of them. They visit a medieval world where they have to pass a series of tests... which none have ever passed. Now SG-1 must team up with their enemies to find it.
File:Stargate SG-1 - 10x11.jpg	The Quest (Part 2)	January 9, 2007	1011
	The Quest continues for the anti-Ori weapon, with Ba'al continuing to keep up the chase, culminating in the disappearance of one of the team.
	Bounty	January 16, 2007	1012 ?
	Cameron Mitchell finds himself the target of an alien bounty hunter, who tracks him and Vala (His 'date') to his high school reunion.
	The Shroud	January 23, 2007	1013
	SG-1 is stunned to discover that their own teammate, Daniel Jackson, has been turned into a Prior of the Ori.
	Line In The Sand	January 30, 2007	1014 ?
	SG-1 is trying to save a village from a Prior and his followers by making it invisible with one of Merlin's devices.
	The Road Not Taken	February 6, 2007	1015 ?
	Carter ends up in an alternate universe where she is still a Major and scientific advisor to the President, and proceeds to change the course of things in that universe.
	Bad Guys / Villains (Sky One Title)	February 13, 2007	1016 ?
	Trapped on a planet, the team must pretend to be volatile "bad guys" while trying to find a way home as they hold the police at bay
	Talion	February 20, 2007	1017 ?
	A former pupil of Teal'c's has turned to the way of Origin and caused the destruction of a Jaffa Council, killing several innocent woman and children, prompting Teal'c to go on a single-minded quest for revenge.
	Family Ties	February 27, 2007	1018 ?
	General Landry's ex-wife, and Doctor Carolyn Lam's mother, visits the SGC.
	Dominion	TBA	1019 ?
	The Ori turn their attention towards Earth.
	Unending	TBA	1020 ?
	SG-1 members travel into the future 20 and 40 years and see what their possible futures may hold

The Sci Fi Channel has stated that Stargate SG-1 will not be renewed for an 11th season. They will, however, let season 10 air entirely (all 20 episodes).

It has been revealed that there will be a new spin-off series to replace SG-1 due to air sometime in 2008

It has been stated that there will be two "straight to DVD" movies that will wrap up the current storyline.

See also

• List of Stargate Atlantis episodes
• Timeline of Stargate

References

• "GateWorld.net". Episode Guide. Retrieved 2006-05-16. (has information on future episodes)
• "TV.com". Stargate SG-1 episode listing. Retrieved 2006-05-16.
• "StargateSG1.com Official Site". Episodes. Retrieved 2006-05-16.
• "StargateFan.com". Episode listing. Retrieved 2006-05-16. (with screenshots)