List of The Grim Adventures of Billy & Mandy episodes
This is a list of episodes of the American animated television series The Grim Adventures of Billy & Mandy created by Maxwell Atoms, which originally aired on Cartoon Network from June 13, 2003, to October 12, 2008.
Eighty half-hour episodes were produced, each consisting of two or three shorter segments. Only a small number of episodes consisted of a single segment.
- 1 Series overview
- 2 Episodes
- 3 Shorts
- 4 DVD releases
- 5 See also
- 6 References
- 7 External links
|Season||Episodes||Originally aired||DVD release dates|
|Season premiere||Season finale||Region 1||Region 4|
|1||10||June 13, 2003||October 31, 2003||September 18, 2007||N/A|
|2||8||June 11, 2004||July 30, 2004||N/A||N/A|
|3||13||October 1, 2004||June 10, 2005||N/A||N/A|
|4||14||July 29, 2005||December 2, 2005||N/A||N/A|
|5||13||January 6, 2006||August 9, 2006||N/A||N/A|
|6||11||October 6, 2006||November 9, 2007||N/A||N/A|
|TV movies||3||March 30, 2007||October 12, 2008||N/A||N/A|
|Special||1||November 11, 2007||N/A||N/A|
Season 1 (2001/2002)
|Season 1||name episode||date|
|Episode 1||Meet the Reaper / Skeletons in the Water Closet||8/24/2001|
|Episode 2||Opposite Day / Look Alive!||8/31/2001|
|Episode 3||Mortal Dilemma / Get Out of My Head||9/7/2001|
|Episode 4||Fiend is Like Friend Without the "R"||10/5/2001|
|Episode 5||Recipe for Disaster||10/12/2001|
|Episode 6||A Dumb Wish||10/19/2001|
|Episode 7||Grim vs. Mom / Tastes Like Chicken||7/19/2002|
|Episode 8||Grim or Gregory / Something Stupid This Way Comes||7/26/2002|
|Episode 9||A Grim Surprise / Beast and Barbarians||8/2/2002|
|Episode 10||Hoss Delgado: Spectral Exterminator / To Eris Human||8/9/2002|
|Episode 11||Billy's Growth Spurt / Billy and the Bully||10/4/2002|
|Episode 12||Big Trouble in Billy's Basement / Tickle Me Mandy||10/11/2002|
|Episode 13||Little Rock of Horror / Dream a Little Dream||10/18/2002|
Season 2 (2003)
|Title||Cartoon Network airdate||2 Kids airdate|
|1||1-01||"Toadblatt's School of Sorcery / Educating Grim / It's Hokey Mon!"||June 13, 2003||November 5, 2004|
|2||1-02||"Night of the Living Grim / Brown Evil / Brown Evil: Part 2"||June 20, 2003||November 12, 2004|
|3||1-03||"Mandy, the Merciless / Creating Chaos / The Really Odd Couple"||June 27, 2003||November 19, 2004|
|4||1-04||"Who Killed Who? / Tween Wolf"||July 4, 2003||November 26, 2004|
|5||1-05||"Grim in Love / Crushed! / Love is Evol Spelled Backwards"||July 11, 2003||December 3, 2004|
|6||1-06||"The Crawling Niceness / Smarten Up! / The Grim Show"||July 18, 2003||December 10, 2004|
|7||1-07||"Son of Nergal / Sister Grim / Go-Kart 3000!"||July 25, 2003||December 17, 2004|
|8||1-08||"Terror of the Black Knight / Battle of the Bands / Halls of Time"||August 1, 2003||December 24, 2004|
|9||1-09||"Grim for a Day / Chicken Ball Z"||August 15, 2003||December 31, 2004|
|10||1–10||"Billy & Mandy's Jacked-Up Halloween"||October 31, 2003||March 4, 2005|
Season 3 (2004)
|Title||Original air date|
|11||2-01||"Spider's Little Daddy / Tricycle of Terror"||June 11, 2004|
|12||2-02||"Dumb Luck / No Body Loves Grim"||June 18, 2004|
|13||2-03||"Li'l Porkchop / Skarred for Life"||June 25, 2004|
|14||2-04||"House of Pain / A Grim Prophecy / Mandy Bites Dog"||July 2, 2004|
|15||2-05||"Nursery Crimes / My Peeps"||July 9, 2004|
|16||2-06||"Nigel Planter and the Chamber Pot of Secrets / Circus of Fear"||July 16, 2004|
|17||2-07||"Bully Boogie / Here Thar Be Dwarves!"||July 23, 2004|
|18||2-08||"Substitute Teacher / Which Came First?"||July 30, 2004|
Season 4 (2004–05)
|Title||Original air date|
|19||3-01||"Super Zero / Sickly Sweet"||October 1, 2004|
|20||3–02||"Bearded Billy / The Nerve"||October 8, 2004|
|21||3–03||"Test of Time / A Kick in the Asgard / 5:00 Shadows"||October 15, 2004|
|22||3–04||"Complete and Utter Chaos (Billy Gets Dumber) / Attack of the Clowns"||October 29, 2004|
|23||3–05||"Whatever Happened to Billy Whatishisname? / Just the Two of Pus"||November 5, 2004|
|24||3–06||"Chocolate Sailor / The Good, the Bad and the Toothless"||November 12, 2004|
|25||3–07||"Toys Will Be Toys / That's My Mummy"||November 26, 2004|
|26||3-08||"The Secret Snake Club"||February 21, 2005|
|27||3-09||"He's Not Dead, He's My Mascot / Hog Wild"||April 1, 2005|
|28||3-10||"The Bad News Ghouls / The House of No Tomorrow"||April 8, 2005|
|29||3-11||"Happy Huggy Stuffy Bears / The Secret Decoder Ring"||April 15, 2005|
|30||3-12||"Wild Parts / The Problem with Billy"||June 3, 2005|
|31||3-13||"Wishbones"||June 10, 2005|
Season 5 (2005)
|Title||Original air date|
|32||4-01||"Dream Mutt / Scythe for Sale"||June 17, 2005|
|33||4-02||"Jeffy's Web / Irwin Gets a Clue"||June 24, 2005|
|34||4-03||"Duck! / Aren't You Chupacabra to See Me?"||June 24, 2005|
|35||4–04||"Zip Your Fly / Puddle Jumping"||June 27, 2005|
|36||4–05||"Runaway Pants / Scythe 2.0"||June 28, 2005|
|37||4–06||"The Firebird Sweet / The Bubble with Billy"||June 29, 2005|
|38||4–07||"Billy Idiot / Home of the Ancients"||June 30, 2005|
|39||4-08||"My Fair Mandy"||July 29, 2005|
|40||4-09||"One Crazy Summoner / Guess What's Coming to Dinner"||August 5, 2005|
|41||4-10||"Mommy Fiercest / The Taking Tree"||August 12, 2005|
|42||4-11||"Reap Walking / The Loser from the Earth's Core"||October 7, 2005|
|43||4-12||"Ecto Cooler / The Schlubs"||October 14, 2005|
|44||4-13||"Prank Call of Cthulhu"||October 21, 2005|
|45||4–14||"Billy and Mandy Save Christmas"||December 2, 2005|
Season 6 (2006)
|Title||Original air date|
|46||5-01||"Billy Ocean / Hill Billy"||January 6, 2006|
|47||5-02||"Keeper of the Reaper"||January 13, 2006|
|48||5-03||"The Love That Dare not Speak Its Name / Major Cheese"||January 20, 2006|
|49||5-04||"Modern Primitives / Giant Billy and Mandy All Out Attack"||January 27, 2006|
|50||5-05||"The Wrongest Yard / Druid, Where's My Car?"||March 20, 2006|
|51||5-06||"Herbicidal Maniac / Chaos Theory"||March 21, 2006|
|52||5-07||"A Grim Day / Pandora's Lunch Box"||March 22, 2006|
|53||5-08||"Billy and Mandy vs. the Martians"||March 23, 2006|
|54||5-09||"Dumb-Dumbs & Dragons / Fear and Loathing in Endsville"||May 12, 2006|
|55||5–10||"Dad Day Afternoon / Scary Poppins"||June 5, 2006|
|56||5–11||"Hurter Monkey / Goodbling and the Hip-Hop-Opotamus"||July 10, 2006|
|57||5–12||"Spidermandy / Be A-Fred, Be Very A-Fred"||July 24, 2006|
|58||5–13||"The Crass Unicorn / Billy & Mandy Begins"||August 9, 2006|
Season 7 (2006–2007)
This sixth season has eleven regular episodes. Midway through this season, the special episode "Billy and Mandy Moon the Moon" was shown, and the TV movies Billy & Mandy's Big Boogey Adventure and Billy & Mandy: Wrath of the Spider Queen had first aired.
In this season, special debut appearances are made by Pinface (a parody of Pinhead from Hellraiser); the mummy of the Pharaoh King Popen Locken, who is Irwin's maternal grandfather; the Abominable Snowman, who is to be reaped by Grim; King Triceps, ruler of the ocean, and his daughters Hariel and Uvula (parodying The Little Mermaid); Hector Con Carne and Major Dr. Ghastly (from Evil Con Carne), who try to recruit General Skarr back to their army; Lionel Van Helsing, a vampire hunter seeking to destroy Dracula; and Del Uglio, a Mexican luchador, who turns out to be Billy's identical twin brother.
Lord Pain returns, now serving Mandy, instead of Grim; the Secret Snake Club is also back, now trying to avoid physical education; Nergal and his family engage in a pizza war against Billy, Mandy and Grim's own pizzeria; Nergal Junior and Irwin battle for the strong and possessive romantic love they have for Mandy; Dracula is revealed to be Irwin's paternal grandfather; Nigel Planter discovers the supernaturally dark and evil truth behind the lightning-shaped scar on his forehead; and Billy, Mandy, and Grim find themselves in Mexico to save the Dia de los Muertos festivities.
In the episode "Heartburn", the last and final regular episode of the series, Mandy temporarily overcomes her dark and evil nature and finally romantically kisses Irwin on the lips. She quickly goes back to her old sinister, power-hungry self. There is also an Austrian therapist called Dr. Hans Frankfurt who was seen in the episode "Everything Breaks" and the Wrath of the Spider Queen movie.
|Title||Original air date|
|59||6-01||"Everything Breaks / The Show That Dare Not Speak Its Name"||October 6, 2006|
Everything Breaks: As Billy behaves more reckless than ever and cannot stop breaking everything in sight, Mandy thinks he should go some place where he can release all his urge to destroy until he gets tired of it. Mandy, Grim, and Irwin go to Level 9, home of the fearsome warrior Lord Pain, to convince him to take Billy. Billy receives psychological treatment and it is revealed that his desire to destroy stems from lack of attention when he was younger. Lord Pain abducts him, and together they start destroying everything in Level 9, which seems to be is uninhabited. Billy is still not satisfied, so he and Lord Pain return to Endsville and carry on breaking everything.The Show that Dare Not Speak Its Name: When Grim leaves the house to meet someone he met on the internet, Billy looks inside Grim's trunk for something to entertain himself. Billy finds a magical talking Rubik's Cube, which releases the demon Pinface, who has bowling pins in his head. Pinface proceeds to call his minions to conquer Earth, but the minions are more interested in throwing a house party. It is revealed that Grim and Pinface already know each other, and Grim even broke up with Pinface's sister. Billy's father ends up cheating and solves the magical cube by rearranging the stickers, trapping Pinface and his minions inside it again.
|60||6-02||"The Secret Snake Club vs. P.E. / King Tooten Pooten"||October 20, 2006|
The Secret Snake Club vs. P.E.: As Billy realizes the three geeks of the Secret Snake Club get doctor's notes to avoid Physical Education (P.E.) class, he wants to know their secret to avoid the class too. All the boys in the class join the club and all, except Billy, get doctor's notes from Billy's dad, who poses as a doctor. While Billy is the only one exercising in the class, the Snake Club summons a snake to destroy the gym. Since the invoked snake is tiny, Sperg uses Grim's scythe to make it a giant. Mandy and the other girls beat the boys and their snake because they did appreciate the P.E. class as an outlet for their aggression.King Tooten Pooten: When Billy, Mandy and Grim attend an Ancient Egypt exhibit at the museum, they meet with Irwin who explains that, as his mother is a mummy, they are visiting Irwin's grandfather, the great Pharaoh King Popen Locken. Later that night, Irwin's grandfather visits Irwin in his room and offers him the Pharaoh's crown and the possibility of building his own pyramid to attract women; Irwin accepts, calling himself King Tooten Pooten, and soon they turn the citizens into slaves to build the pyramid. Against his mother's wishes, Irwin decides to finish the pyramid; however, there is something he did not anticipate, as he, the Pharaoh, needs to remain entombed inside it.
|61||6-03||"Billy Gets an "A" / Yeti or Not, Here I Come"||March 2, 2007|
Billy Gets an "A": When Billy fails an important test, the result of which will go into his permanent record, he asks Grim to magically alter his grade from an "F" to an "A"; as Grim reluctantly changes the grade, Billy becomes a genius, but reality is thrown completely off balance. Mandy and Grim go back in time to stop the past Grim from helping Billy, but it does not work. They keep going back in time to different epochs, each time meeting another Grim, eventually trying to stop Billy's ancestors from conceiving him, but nothing works. After meeting Billy's distant dinosaur relative, the episode ends abruptly as Grim wonders what the end of this could be.Yeti or Not, Here I Come: After watching the Unsolvable Mysteries TV show, Grim realizes he forgot a million years ago to reap the Abominable Snowman living in the Himalayas. Billy, Mandy and Grim go there to finish the job and also to obtain videographic proof of the snowman's existence. The Yeti, who likes to be called Abom, manages to escape Grim more than once before finally being trapped by the moving glacier. Grim watches the TV show again, but he may have forgotten to reap the Loch Ness monster too.
|62||6-04||"Nergal's Pizza / Hey, Water You Doing?"||March 9, 2007|
Nergal's Pizza: When Nergal comes to tell the guys about his new pizza joint, Grim thinks he can do better by using his Granny's recipe. A pizza war ensues between Nergal's Pizza and Grim's Pizza, with each pizzeria launching TV ads and discrediting each other. Nergal Jr. uses his shape-shifting abilities to infiltrate Grim's pizza and replace Granny Grim's hot sauce with a "ghastly elixir". The result is pizzas becoming monsters and attacking the city, and the citizens developing parasites similar to Nergal. Nergal and his family leave the city just as Grim's sauce explodes.Hey, Water You Doing?: After Billy, Mandy and Grim are disappointed with the SassyCat amusement park submarine attraction, Grim uses his powers to take them to the bottom of the ocean to have a real magical adventure. They are sentenced to death for trespassing into the Googen Kingdom by King Triceps, a wrestling merman. The king's daughter, Hariel, also a mermaid, stops the sacrifice and tries to marry Billy to inherit the kingdom. It is revealed that King Triceps is actually Hariel's sister, the sea witch Uvula, who also tries inherit the kingdom. A cat fight ensues between the two ladies, which ends when Billy agrees to marry both of them. The plot is revealed to be a story Billy is telling to Miss Butterbean, who initially asked him what happened to his report.
|63||6-05||"Company Halt / Anger Mismanagement"||March 16, 2007|
Company Halt: As General Skarr is once again annoyed by Billy, Hector Con Carne and Major Dr. Ghastly arrive in his house with the intention of luring him back to the recently relaunched Evil Con Carne world domination organization. Although initially refusing to rejoin, Skarr later accepts with the condition that Billy and the other neighbors be destroyed. After a few weeks of living together and preparations, Evil Con Carne's ultimate weapon is revealed to be an army of tanks that shoot giant rubber bands. Skarr's all-out attack over the neighborhood is foiled when Billy tricks Hector into shooting Skarr's garden and they get into a fight.anger management classes if he wants to work again. Skarr finds out Mandy and Grim are attending too, Mandy for staring at the school monitor, and Grim for enjoying his job too much. The instructor of the class, Larry, turns out to be a peace-loving, short man riding a tricycle, who teaches the trio ways to calm down when angered, including counting to ten, and using harmless weapons to let go of their anger. Larry invites Billy to the class, and Mandy, Grim, and Skarr all manage to contain themselves; however, Larry himself suffers an episode of rage over a parking space and he is arrested.
|64||6-06||"Waking Nightmare / Beware of the Undertoad"||March 23, 2007|
Waking Nightmare: When Mandy finds Billy playing with Grim's gigantic dog, Cerberus, she tells Grim to keep Billy under tight control because she needs a good night of sleep to be ready for the next day's test. With a little persuasion from his own dad, Billy tries to wake up Mandy at night, so she will fail the test and he can score higher than her for the first time. After Grim spends the night guarding Mandy's house from Billy, the latter succeeds in waking up Mandy. It is revealed that this Mandy is in fact Irwin, used as a decoy by the real Mandy, who slept in her dog's house. Mandy passes the test, and Grim is punished for not guarding her properly.Beware of the Undertoad: When Billy, Mandy and Grim once again go to the beach, Grim warns Billy to avoid swimming too far, because the "undertoad", a frog-like creature, will try to drag him into the sea. Billy encounters the undertoad, and he barely makes it back to the beach. With the dangers of the sea averted, the guys go back home, but the undertoad is set on bringing Billy down, that he follows him to his house. The next day, the undertoad becomes a constant annoyance to Billy, even at school. Grim and Mandy capture the undertoad, and set sail to release him at sea, where they meat the giant Mama undertoad.
|65||6-07||"The Greatest Love Story Ever Told Ever / Detention X"||April 6, 2007|
The Greatest Love Story Ever Told Ever: When Irwin lacks the courage to ask Mandy to go with him to the Valentine's Day school dance, he tells Nergal Jr. to do it for him. Mandy mistakes Junior's invitation for his own, and surprisingly accepts to go with him, which naturally makes Irwin jealous. With the ill advice received from his father, to be possessive with Mandy, at the dance Junior becomes overprotective of her, that eventually he and Irwin start fighting, throwing punch at each other and ruining the ball. It is revealed that this was Mandy's true intention all along so that no one could enjoy Valentine's Day.Detention X: When Billy accidentally food-poisons Miss Butterbean, Principal Goodvibes offers Grim the job of substitute teacher, which Grim accepts as now Billy and Mandy have to obey him. Grim sends misbehaving students to the "Detention Dimension", a place of eternal classroom punishment, until only Mandy remains in his class. Grim tricks Mandy into opening a portal and she is dragged into the dimension too. Mandy proves to be more terrifying than Miss Slither, the giant, rattlesnake-like creature in charge of the Detention Dimension, that Mandy escapes the place and takes revenge on Grim by sending him there too.
|66||6-08||"Billy and Mandy Moon the Moon"||May 28, 2007|
|When Billy is sent to bed after playing with his Dr. Brainiac action figure, he wishes he had an adventure. He notices a strange light outside and wanders into a corn field to investigate; he encounters Sperg, and both of them got caught by a UFO's tractor beam. Inside the extraterrestrials decide to experiment on them. When they return home, it is revealed that Sperg has a bomb implanted in his head, and also that there is a shortage of dairy products; Billy explains that the aliens are stealing Earth's dairy products because they are werewolf-like creatures who need cheese, and they have already mined all the cheese in the Moon. Billy's crazy story is confirmed when too many UFOs appear. Billy says they must assemble a team of dairy superheroes, the Green Squeaker (Billy), Milk Mandy, the Cheese Reaper, and Diary Boy (Sperg), to combat the aliens, but everybody is opposed to the idea. Later, the four of them have been captured and are sent to the Moon to be destroyed, but they escape and try to stop the Moon ship from getting to Earth. The Moon aliens start their transformation into werewolves, and they bite Billy, who becomes a werewolf too. With their backs to the wall, Grim finally chooses to give Billy, Mandy and himself their dairy superpowers. Meanwhile, Sperg sacrifices himself by letting the bomb in his head explode in the control room, crashing the spaceship in the Moon and saving Earth. This was the fifth and final chapter of Cartoon Network Invaded which also concluded with an alternate ending on June 1.|
|67||6-09||"Dracula Must Die! / Short Tall Tales"||September 21, 2007|
Dracula Must Die!: When vampire hunter Lionel Van Helsing prepares to kill Dracula, Billy, Mandy, and Grim arrive to stop him since Dracula is just senile and harmless. Van Helsing reveals the source of his hatred: in the past, he and Dracula were "best friends forever", until Dracula used his irresistible dance moves to marry Tanya, the woman of his dreams. Tanya arrives too, revealing that she is none other than Irwin's grandmother, making Irwin one-quarter-vampire on his father's side and half-mummy on his mother's side. Van Helsing leaves, but Dracula is unsatisfied with his newfound family of nerds.Short Tall Tales: As Billy, Mandy, and Irwin need to write a school report on tall tales, Grim tells outrageous tall tales about Pecos Billy (based on Pecos Bill), Paula Bunyan (based on Paul Bunyan), and John Henry. In Grim's stories, Pecos Billy (Billy) tames a twister using his personal laser-shooting cow-like spacecraft, saving an Arizona trailer park; Paula Bunyan (Mandy) uses her blue ox companion, Babe, to stomp over a villain, creating the Grand Canyon in the process; John Henry (Irwin) digs through a tunnel so fast that he breaks the laws of physics and bursts into the "eighth dimension". After Grim tells them the stories, Mandy informs Billy and Irwin that he is trying to get them F's.
|68||6–10||"Nigel Planter and the Order of the Peanuts / The Incredible Shrinking Mandy"||September 28, 2007|
Nigel Planter and the Order of the Peanuts: When Billy, Mandy and Grim go to a joke shop, they find the owner is former boy wizard Nigel Planter, who reveals that his powers diminished and was kicked out of Toadblatt's School of Sorcery. Planter steals Grim's scythe and heads to the school to exact revenge on those who wronged him. The guys seek the help of Planter's sworn enemy, Lord Moldybutt, to find the school. Grim recovers his scythe, and Moldybutt turns out to be in fact only a real estate agent, who informs Planter that he is the heir to the "Peanuts by Planter" farming company.The Incredible Shrinking Mandy: When Grim cannot take any more abuse from Mandy, Billy tries using Grim's scythe to shrink her to mouse size. Instead of shrinking, Mandy becomes a giant and destroys Billy's house. Although Mandy enjoys being a giant for a while, there are inconveniences, as she keeps growing as time passes, and she wants to return to her normal size. Billy is the only one who can cancel the curse he put on Mandy, and he refuses to do so. Mandy grows bigger than the planet, and she finds herself in the "Realm of the Infinite" with other creatures that grow at infinite pace. Mandy starts bossing them around to please her.
|69||6–11||"El Dia de Los Muertos Estupidos / Heartburn"||November 9, 2007|
El Dia de Los Muertos Estupidos: When Billy's dad drives Billy, Mandy and Grim to the hamburger restaurant, they somehow end up in Mexico. There, the people are celebrating Dia de los Muertos, but local kids say it may be the last celebration ever, because Del Uglio, a masked and ugly luchador, is set on stealing the "Golden Nose of Chipotle", a prehispanic relic on which the festivity is based. To get to the nose, Del Uglio has one half of the map, while the other half is held by his lost twin brother, who turns out to be Billy. Grim defeats Del Uglio, but it is Mandy who keeps the golden nose for herself, which makes her rich.Heartburn: When Billy starts taking pictures with a camera found in Grim's trunk, Grim tells him that is an Underworld's True-heart Camera, which shows the real essence of a person's heart. When Mandy takes Irwin's picture, it is revealed that he is actually half-good and half-evil. Irwin explains that although he was born evil, his dad taught him about love and respect, and he had a change of heart. Upon knowing this, and against her own wishes, Mandy also experiences a painful change, turning good and kind-hearted. Mandy and Irwin finally share a romantic kiss in this episode, but it makes Mandy revert to her old dark and sinister self, which was Irwin's true intention, as he likes her just the way she is.
|Number||Title||Original air date|
|01||"Billy & Mandy's Big Boogey Adventure"||March 30, 2007|
A scene of Endsville two weeks into the future shows a dystopian world ruled by the "Lord of Horror", who wields the all-powerful artifact known as "Horror's Hand". At the same time, two robotic replicas of Billy and Mandy are sent into the past, to stop the real Billy and Mandy from interfering with the current events.
In the present, Grim goes to reap General Skarr, who accidentally got a big wound in his torso. Due to Billy and Mandy's meddling, Skarr escapes, and they make a big mess in the city. Following his failure to be an effective Reaper, Grim is taken to the Underworld Court, presided by Judge Roy Spleen, where he is sued for misuse of his powers by his nemesis, the Boogeyman. Grim is found guilty, is stripped of his rank and magical scythe, and he, Billy, Mandy, and Irwin are sentenced to be exiled. Boogey volunteers to carry on the sentence by taking the prisoners aboard his ship, and dropping them off in a river of fire; he plans to do this while he sails to obtain Horror's Hand, an object capable of transforming him into the scariest, strongest, and most powerful being in existence.
The group of Billy, Mandy, Irwin, and the powerless Grim, escapes from Boogey's ship when Billy distracts Boogey and his crew with the song "Scary-o", and set themselves to reach Horror's Hand before Boogey does. They eventually meet Horror, the guardian of the Hand, at the same time Boogey and his crew arrive. To decide who will have the honor to battle Horror for his Hand, the heroes and Boogey participate in a challenging obstacle course, which the heroes win against all odds. After dispatching Horror with ease, Billy, Mandy and Irwin reach for the Hand, but it defends itself by making their worst nightmares come to life. Boogey gets hold of Horror's Hand, but he turns out to be the least scariest creature ever, seriously injuring himself, and being abandoned by his own crew.Grim recovers Horror's Hand, and at the same time his sentence is revoked, becoming the Reaper once again. The future Billy arrives, telling them Horror's Hand should not fall in the wrong hands, specifically Mandy's as he indirectly reveals that she was the one who used Horror's Hand to rule the world. When they return home, Grim seals Horror's Hand in his bottomless trunk, and the future Billy returns to his own time. The future Billy realizes the situation in his time did not improve, and it is Fred Fredburger who obtained Horror's Hand to rule the world.
|02||"Billy & Mandy: Wrath of the Spider Queen"||July 6, 2007|
On a rainy day, giant spiders appear in Billy and Mandy's school and start kidnapping the children one by one. Grim presumes this is somehow related to his past, but does not figure it out until he receives a message saying that Velma, the Spider Queen, an old good friend from high school, is responsible for it. Meanwhile, Billy meets with Jeff the Spider, who informs him that he is precisely marrying Velma. After trying to recover a talking carton of chocolate milk from Jeff, Billy and Jeff get into a fight, and Jeff looks angrier than ever before.
Upon meeting in the school's football field, Velma tells Grim that she has finally come to devour his skull and absorb his magical and supernatural powers, since one hundred thousand years ago, Grim had cheated and robbed her from the possibility of becoming the Reaper in a scare election. Converting the school into her own palace, and with help from the Dark Elves, Velma captures Mandy, Mindy, and Grim, and proceeds to devour the latter's skull. When Velma cracks open Grim's skull, his thoughts start coming out in the form of light blue light, and she is able to see his past memories.
Grim's skull is connected to a projection screen, and the story on how he became the Reaper is shown. It is revealed that an election was held in the Underworld's high school to choose the Reaper, in which students had to vote on the scariest participant. Velma was the scariest contestant and she was getting most of the votes over the pathetic Grim and the Boogeyman. Boogey decided to tamper with the ballots, and Grim in turn decided to help Velma by filling the ballot with votes for her, but she got the impression that Grim was the cheater and ran away. In a fit of anger for what Boogey had caused, Grim used the prototype scythe in a spectacular fashion to scare Boogey off. The people that had not yet cast their vote voted for Grim, who became the new Reaper. While the story is being told, Mandy and Mindy form a temporary alliance to fight the spiders, and also Billy conquers his arachnid-phobia, and fights the spider-cow centaur-like extraterrestrial from the milk carton.Velma realizes she was wrong, with respect to Grim, and she apologizes for the whole vengeful ordeal. After the wedding ceremony, Billy suddenly realizes Velma is a spider, and forbids Jeff from getting married to her, despite the fact that Jeff is a spider too. With no wedding and no revenge, Velma decides to go ahead and conquer Earth, just like her parents wanted.
|03||"Underfist: Halloween Bash"||October 12, 2008|
|Billy, Irwin and Mandy go trick-or-treating on Halloween, and an evil marshmallow bunny attacks children with chocolate beasts. (Series Finale)|
|Number||Title||Original air date|
|S1||"The Grim Adventures of the Kids Next Door"||November 11, 2007|
|While Billy's Dad is underwear shopping, Billy wears his dad's lucky pants, and accidentely rips them with Grim's scythe. He calls Ed, Edd n Eddy, and they recommend Kids Next Door for charity. Numbah 1 disguises as Billy while Billy is taken back to the Deep Sea Lab. Mandy arrives at Billy's house and knows Numbah 1 is not Billy, and tortures him into revealing the truth. Meanwhile, the Delightful Children from Down the Lane and Billy accidentally fuse with the scythe's power to create the Delightful Reaper. Mandy takes over the KND by fooling Numbah 362 and the rest of the KND, but Numbah 5 knows she is not Numbah 1, but is taken to the med lab. The Delightful Reaper assimilates nearly all of Endsville (including Numbah 2) and grows more powerful. Numbah 1 and Grim try to get the KND to see the truth, but are imprisoned. Numbah 5 escapes and finds Numbah 1 and Grim. Grim and Numbah 1 fuse with the Bone of Barnacles and become the Skeleton Samurai. Mandy, in her M.A.N.D.R.O.B.O.T. (Monkeys And Nice Doggies Ride On Backs Of Turtles), fights the Delightful Reaper, and so does the Skeleton Samurai, but they cannot defeat it. Grim finds out that the pants are Billy's dad's pants (which we now find out are immune to lasers, supernatural energies and mustard). Mandy is their only hope to defeat the Reaper, but instead they fuse with the Reaper. Billy's dad takes off the pants, and the Samurai Skeleton destroys the Reaper, freeing all of the assimilated children inside it. Mandy becomes furious with Numbuh 1 and Grim, and escapes to vow revenge. Numbuh 1 is mistaken to be Billy by Billy's Dad, who punishes him for ruining his lucky pants, as Billy, on the other hand, disguises as Numbuh 1, causing the KND to throw various objects at him in response to prevent what happened that day.|
Billy's Birthday Shorties
These shorts were parts of a mini-series called Billy's Birthday Shorties, which mostly starred Billy. The shorts revolved around Billy's birthday and aired on "The Grim and Courage Hour", an hour-long block of episodes from The Grim Adventures of Billy and Mandy and Courage the Cowardly Dog. It aired for four days in October 2006 on Cartoon Network.
|#||Title||Original air date|
|B1||"Super Myron Brothers"||October 23, 2006|
|Billy looks into Grim's trunk and sees a monster and names it Myron. But when Billy brings Myron outside to his backyard, he gets eaten.|
|B2||"Macaroni Man"||October 24, 2006|
|B3||"Cake It to the Limit"||October 25, 2006|
|Grim decides to make a cake for Billy's birthday, but he and Mandy end up making a Devil's Food cake that comes alive and began wrecking the kitchen. The cake hops on Grim's face but Mandy smashes it and splatters it all over the kitchen. Grim and Mandy give Billy a cake covered kitchen, much to Billy's delight.|
|B4||"Makeover the Top"||October 25, 2006|
|Irwin finishes wrapping Billy's present and buys a huge present for Mandy as well. He decides it is not big enough so his dad decides to teach him how to dance. Irwin writes her a rap and Irwin's dad ends up teaching him how to work out instead of dancing. Irwin shows his moves to Mandy, but Mandy rejects him; Irwin also gets a wedgie from Sperg.|
|B5||"The Uninvited"||October 26, 2006|
|Dracula was heading for the bingo hall when he ran into Pudn who was on his way to Billy's party. Dracula was insulted he was not invited to the party and decides to crash it. Harold will not let him in and accidentally calls him old. Dracula starts dancing and breaks all his bones, much to Harold's disgust. Harold lets him in so he will stop.|
|B6||"Death of the Party"||October 26, 2006|
|Billy blows out the candles off his cake and Dracula turns to leave, but Billy stops him and forces him to stay for games. They play Pictionary as he draws Abraham Lincoln but no one guesses it. Everyone turns to leave but Billy stops him and forces them to party all night. Billy decides to get a pinata but the stores are closed so Billy forces them to stay all night until Grim and the others decide to use Billy as a piñata.|
Irwin Hearts Mandy
On February 14, 2007, four shorts aired entitled Irwin Hearts Mandy.
|1||"Dream Date"||February 14, 2007|
|2||"Dracula De Bergerac"||February 14, 2007|
|3||"Hate in an Elevator"||February 14, 2007|
|4||"Future Nerd"||February 14, 2007|
|1||"Date With Death"||2007|
|3||"Fit to be Tied"||2007|
|7||"Frozey the Snowman"||2007|
The complete first season of Billy & Mandy was released on DVD on September 18, 2007. All seasons have also been made available for purchase on iTunes.
The following special features include:
- Commentary on "Battle of the Bands/Little Rock of Horror/Dream a Little Dream" with Maxwell Atoms and Billy (voiced by Richard Horvitz)
- A "Behind the Fiends" Featurette with Maxwell Atoms
- "Mandyisms" (A collection of Mandy's phrases from the beginning of each episode)
- "Burp-O-Rama" ("Night of the Living Grim/Brown Evil Pts. 1 & 2" with burping sounds throughout the episodes)
- "Skarr-O-Vision" ("Evil Con Carne/Emotional Skarr/Evil Goes Wild" shown with Skarr's facial scar over the screen)
- A music video for Voltaire's "BRAINS!"
- A Mr. Snuggles virtual pet
- Bonus Evil Con Carne episodes.
Additionally, select episodes from the series have been featured on various Cartoon Network DVDs.
- Cartoon Network Halloween Volume 1 – 9 Creepy Capers (August 10, 2004)—"Billy and Mandy's Jacked Up Halloween"
- Cartoon Network Christmas Volume 1 – Yuletide Follies (October 5, 2004)—"Son of Nergal"
- Ed, Edd n Eddy, Volume 1 – Edifying Ed-Ventures (May 10, 2005)—"Nursery Crimes"
- Cartoon Network Halloween Volume 2 – Grossest Halloween Ever (August 9, 2005)—"Night of the Living Grim"
- Codename: Kids Next Door – Sooper Hugest Missions File Two (August 23, 2005)—"Crushed!"
- Cartoon Network Christmas Volume 2 – Christmas Rocks (October 5, 2005)—"Battle of the Bands"
- Cartoon Network Halloween Volume 3 – Sweet Sweet Fear (September 12, 2006)—"The Bubble with Billy"
- Cartoon Network Fridays – Volume 1 (September 19, 2006)—"Herbicidal Maniac"
- Cartoon Network Christmas Volume 3 (October 3, 2006)—"Billy & Mandy Save Christmas"
- Billy & Mandy's Big Boogey Adventure (April 3, 2007)—"Bully Boogie"
- Lambert, David (June 7, 2007). "The Grim Adventures of Billy and Mandy- The Rumors were true: Season 1 announced". TVShowsOnDVD.com. Retrieved 2007-06-11.
- Lambert, David (June 3, 2007). "The Grim Adventures of Billy & Mandy DVD news: Details about The Grim Adventures of Billy & Mandy – The Complete Season 1". TVShowsOnDVD.com. Retrieved 2007-07-04.
- "The Grim Adventures of Billy & Mandy" at IMDB
- "The Grim Adventures of Billy & Mandy" episode list at IMDB. Also lists the Evil Con Carne episodes from Season 1
- "The Grim Adventures of Billy & Mandy" at TV.com
- "The Grim Adventures of Billy & Mandy" episode guide at TV.com