List of The Adventures of Jimmy Neutron: Boy Genius episodes

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The following is a list of all The Adventures of Jimmy Neutron: Boy Genius episodes.

Series overview[edit]

Season Episodes Originally aired
First aired Last aired
1 20 July 20, 2002 June 13, 2003
2 29 August 1, 2003 July 9, 2004
3 20 November 11, 2004 November 25, 2006



Title Original air date
""Runaway Rocketboy!"" September 10, 1998
Jimmy (voiced by Debi Derryberry) runs away after his parents ground him for launching Carl (voiced by Rob Paulsen) off the roof, but soon discovers King Goobot and his henchman, Ooblar, trying to take over the world. While Hugh and Judy Neutron are talking about Jimmy returning home, Jimmy thwarts their plot, and returns home. The episode ends with Carl coming into the house and asking if he can use their toilet.

Season 1: 2002–2003[edit]

Unlike Season 2 or 3, Season 1 of Jimmy Neutron takes a more comical approach to the show, with little development of Jimmy and Cindy's relationship.

  • Jimmy Neutron, Sheen Estevez, and Carl Wheezer were present for all episodes.
  • Libby was absent for 5 episodes.
  • Cindy was absent for 4 episodes.
  • Goddard, Hugh, Judy were absent for the season finale.
Prod. No. Title Summary Original airdate
1 "When Pants Attack" Jimmy, Sheen, Carl, and Cindy are attacked by their own pants resulting from a new invention gone awry, eventually setting off a chain reaction for all of the other pants in town. July 20, 2002
2 "Normal Boy / Birth of a Salesman" Jimmy wants to be a normal boy. Jimmy invents a salesman robot to win in a fundraiser contest against Cindy. September 6, 2002
3 "Brobot / The Big Pinch" When his friends are too busy to help test his new pogo stick, Jimmy invents a little brother robot who soon becomes annoying. Wanting to prove Cindy wrong, Jimmy brings Thomas Edison to the present, but is unable to take him back when Edison falls for Ms. Fowl. September 13, 2002
4 "Granny Baby / Time is Money" When Granny Neutron visits while his folks are away, Jimmy accidentally turns her into a baby and must look after her while simultaneously working on an antidote. The Neutrons become rich after Jimmy goes back in time to convince his dad to invest in McSpanky's.
Absent: Cindy, Libby
September 20, 2002
5 "Raise the Oozy Scab / I Dream of Jimmy" Jimmy, Carl, Cindy and Sheen go underwater in a submarine to look for treasure, only to find out it wasn't what they expected. Carl is having a problem with his nightmares, so he convinces Jimmy to help him. However, Carl accidentally gets Jimmy stuck in his next dream and Jimmy has to find his way out. September 27, 2002
6 "Jimmy on Ice / Battle of the Bands" Jimmy freezes Retroville on a hot day, sending the town into a second Ice Age. Later, he has to find a way to melt the large amounts of snow and ice. Jimmy, Sheen, and Carl form a rock band so they can beat Cindy and Libby in the school talent show, but their friendship is nearly destroyed. October 4, 2002
7 "See Jimmy Run / Trading Faces" Wanting to beat Cindy in a running race, Jimmy gains super speed with his new shoes, but the side effect is that he can't stop running. Jimmy and Cindy switch minds (and voices) and need their friends to set them back in their correct bodies. October 14, 2002
8 "The Phantom of Retroland / My Son, the Hamster" Jimmy, Carl, and Sheen go to investigate a supposed "phantom" in Retroland, which turns out to be real. Jimmy accidentally switches bodies with Carl's hamster. October 30, 2002
9 "Hall Monster / Hypno Birthday to You" Jimmy becomes hall monitor, but takes it too far when he arrests his friends. Jimmy hypnotizes his parents into thinking that it is his birthday every day, but soon grows bored of it. November 1, 2002
10 "Krunch Time / Substitute Creature" Jimmy invents a candy everyone becomes addicted to, and the other citizens become enraged when he refuses to give them more of it. Jimmy accidentally turns Mrs. Fowl into a 50-foot tall, Godzilla-like creature, whom everyone is scared of. November 15, 2002
11 "Safety First / Crime Sheen Investigation" Jimmy creates two Nanobots that wreak havoc; Jimmy investigates the disappearance Sheen's lost Ultra Lord action figure.
Absent: Libby
November 30, 2002
12 "Journey to the Center of Carl / Aaughh!! Wilderness!!" Jimmy invents a sick patch that is guaranteed to get the wearer out of having to attend school. It, unfortunately, ends up making everyone sick, so Jimmy and Sheen go inside of Carl's body to fight his germs and create a vaccine. Jimmy, Carl, and Sheen go camping with Hugh, but end up in trouble with a bear.
Absent: Cindy, Libby
January 31, 2003
13 "Party at Neutron's / Ultra Sheen " Jimmy throws a party without his parents' permission, which he must end quickly before they return. Using Jimmy's newest invention, Sheen travels inside his favorite video game to meet his hero, Ultra Lord, but when he ends up on a challenging level, Jimmy and Carl manage to save him.
Absent: Cindy, Libby
February 17, 2003
14 "Broadcast Blues / Professor Calamitous, I Presume" Jimmy creates his own science TV show, which Cindy and Libby's dance show competes with. Jimmy's rival, Professor Calamitous, tries to take over Retroville. March 14, 2003
15-16 "The Egg-pire Strikes Back" Jimmy's worst enemy from the original film comes back and pretends to be nice, but Jimmy suspects something about the Yolkian's evil plan leading the town to turn against him and attend a Yolkian party. At the same time, the Yolkians trick Cindy into helping them in their evil plan and Cindy, upon realizing that it is her fault when the Yolkians manage to resurrect Poultra, reforms herself by convincing the town to work with Jimmy to defeat the Yolkians. April 25, 2003
17 "Maximum Hugh /Sleepless in Retroville" Jimmy invents a sweatband to help his dad perform better at the parent-child games, but he and his dad are disqualified for cheating. Jimmy invents a new sleep-over machine when Carl and Sheen come over for the night. Things take a scary twist, however, when Carl accidentally creates a pizza monster from tampering with the machine.
Absent: Cindy, Libby
May 17, 2003
18 "Make Room for Daddy-O" Jimmy makes Hugh more "cool", while dealing with some major flaws. June 6, 2003
19 "Beach Party Mummy" Jimmy, Carl, Sheen, Libby and Cindy travel to Egypt to find the ruins of the tomb of Queen Howsaboutaslapya, only to discover she's actually Libby's ancestor.
Absent: Goddard, Hugh, Judy
September 19, 2003[1]

Season 2: 2003–2004[edit]

In contrast to season one, 22-minute episodes became the norm for season two. It took a mature and slightly more serious approach to the show.

  • Jimmy, Carl, and Sheen were present for all episodes.
  • Libby was absent for 3 episodes.
  • Goddard was absent for 2 episodes.
  • Cindy and Judy were both absent for 2 episodes.
  • Hugh was absent for only one episode.
Prod. No. Title Summary Original airdate
20 "A Beautiful Mine" Jimmy, Carl, Sheen, Libby and Cindy search for rare jewels on an asteroid, but become extremely greedy very soon after. Things get worse when aliens on the same asteroid plan to vaporize them. August 1, 2003
21 "Sorry, Wrong Era" Jimmy has invented a Time Replay Remote, which he uses as part of a prank pulled on Cindy and Libby. However, Hugh sees the invention and, in borrowing it to see how it works, accidentally sends Jimmy, Sheen and Carl back 200 million years. Now, the boys must work to avoid the prehistoric dinosaurs and get back to the present. Meanwhile, Hugh begins going forward and reverse in time with the Remote, being completely unaware of where the boys are. September 5, 2003
22 "The Retroville 9 / Grumpy Young Men" Jimmy, Carl, Sheen, Cindy and Libby create an excellent baseball team with Jimmy's improved baseball equipment. Jimmy, Carl and Sheen turn themselves into old men in order to buy an M-rated video game. Bow, they have to get back to their school ages before they turn to dust at 6:03. October 3, 2003
23-24 "Operation: Rescue Jet Fusion" In a salute to spy films like the James Bond series, Jimmy teams up with his idol, actor and spy Jet Fusion, to save the world yet again from Professor Calamitious. October 13, 2003
25 "Nightmare in Retroville" Jimmy and his friends dress up as monsters on Halloween. October 29, 2003
26 "Monster Hunt / Jimmy for President" A rumor spreads that a lake monster is terrorizing Retroville, but Jimmy thinks otherwise (this episode was also a Jaws parody). Jimmy runs for class president against Libby, Sheen and foreign exchange student Bolby, and Carl ends up being forced by each of them to vote for them. November 11, 2003
27 "Return of the Nanobots" The Nanobots escape from Jimmy's lab and wreak havoc. November 14, 2003
28 "Holly Jolly Jimmy" After Jimmy accidentally knocks out "non-existent" Santa Claus while he says that Santa Claus doesn't exist, he goes out to deliver all of the presents. December 8, 2003
29 "Love Potion 976/J" Jimmy creates a love potion for his friends that makes them fall in love with the first person they see: Jimmy falls for Cindy, Sheen for Libby and Carl for Judy, and makes her puff up bigger. February 14, 2004
30 "Sheen's Brain" After Sheen fails a history test, Jimmy increases Sheen's brain to be larger and smarter, but Sheen soon becomes evil with his new mental powers. Now Jimmy and Carl have to stop him from taking over Retroville. March 8, 2004
31 "Maternotron Knows Best / Send in the Clones" Feeling unappreciated around the house, Judy takes a week off at a spa, with Jimmy inventing a replacement robo-mother. Things go awry when the robo-mother goes out of control, but Judy manages to save her son. Jimmy makes clones of himself in order to avoid his chores, but one sinister and mischievous clone ruins everything after the other clones ruin everything. The real Jimmy takes the blame and the citizens of Retroville, including Carl and Sheen, become upset with him.
Absent: Libby
March 9, 2004
32 "The Great Egg Heist / The Feud" Jimmy, Carl, Sheen, Cindy and Libby search for a precious egg, which is needed to save a princess from her evil relative, in a museum. Carl and Jimmy are forbidden to see one another as their parents are fighting against each other.
Absent: Cindy, Libby
March 10, 2004
33 "Out, Darn Spotlight" Jimmy joins his school play to spend more time with his crush, Betty Quinlan. However, he only makes the special effects and Nick is assigned the lead role. When Nick hurts himself skateboarding, Jimmy rushes to save the play.
Absent: Goddard
March 11, 2004
34 "The Junkman Cometh" Jimmy attempts to rescue Brobot and his parents from the Junkman's ship.
Absent: Cindy, Libby, Hugh, Judy
March 12, 2004
35 "Foul Bull / The Science Fair Affair" Miss Fowl takes her students to a rodeo. Jimmy is mad that he is banned from the science fair.
Absent: Judy, Goddard
March 26, 2004
36 "Men at Work" Jimmy, Carl and Sheen get jobs at the fast food diner, McSpanky's. May 26, 2004
37 "The Mighty Wheezers / Billion Dollar Boy" Jimmy's parents are on vacation for the week and Jimmy is left with Carl's family. Jimmy, thinking the Wheezer family is too nerdy, gives them super powers. Jimmy meets Eustace, another boy genius who is a rich showoff as he and Jimmy begin an invention competition. June 7, 2004
38-40 "Win, Lose and Kaboom!" or "You Bet Your Life Form" Jimmy, Carl, Sheen, Cindy, Libby, Goddard, and Bolbi compete in an intergalactic game show in order to stop the creators from destroying Earth. July 9, 2004

Season 3: 2005–2006[edit]

Different screenshots from newer episodes and sound effects are added to the theme song, with the exception of the episodes "Lights, Camera, Danger!", "Fundemonium", "Stranded", "Jimmy Goes to College", and "Who's Your Mommy; Clash of the Cousins" replacing the original theme song from the first two seasons.

  • Jimmy, Carl, and Sheen were present for all episodes.
  • Hugh and Judy were absent for 8 episodes.
  • Cindy, and Libby were absent for 3 episodes.
  • Goddard was absent for 4 episodes.
Prod. No. Title Summary Original airdate
41 "Lights! Camera! Danger!" Jimmy, Carl, Sheen, Cindy, and Libby join a movie cast with a demanding director named Quentin Smitee (Professor Calamitous in disguise and a parody of Quentin Tarantino) who is secretly planning to kill them, and when Hugh is hired as "Donut Boy", he simply doesn't get the point that he won't be in the film. Films parodied in the episode include The Lord of the Rings: The Return of the King, Chicago (with the musical number "Save the Day," a parody of "All That Jazz"), The Matrix and the Harry Potter franchise. November 27, 2004
42 "Fundemonium" In order to stay in Retroville, Hugh makes a fortune creating a brand of children's toys, but the Nanobots soon get inside them and control them to destroy Retroville.
Absent: Cindy, Libby
May 25, 2005
43 "Stranded" Jimmy and Cindy fall out of the hover car and into the ocean while arguing and become stranded on a deserted island. Sheen, Carl, and Libby try to disable the autopilot and find their friends in the ocean.
Absent: Hugh, Judy, Goddard
May 26, 2005
44 "Jimmy Goes to College" Jimmy's grades are so great that he is allowed to skip regular school and go directly to college, but when one of the students become jealous of Jimmy, he tries to embarrass him. May 27, 2005
45 "Who's Your Mommy / Clash of the Cousins" Carl gets infected by a "face-hugging" parasite, and becomes pregnant with an alien baby. Jimmy and his parents go to the Neutron's little family reunion to see Hugh's family. Apparently, someone is trying to destroy the family and Jimmy is blamed for destroying the stuff at the reunion. As it turns out, Baby Eddie is the one trying to ruin the reunion.
Absent: Cindy, Libby
June 20, 2005
46-47 "Attack of the Twonkies!" Jimmy sees a big monster in space that comes to Earth and gives birth to smaller monsters. Everyone else finds them cute and adopts one of each, but they regret doing so because when the monsters hear music, they turn evil. Jimmy has to get the new creatures out of Earth before they destroy the world.
Note: This one hour episode has a special theme in the beginning.
November 11, 2004
48 "The 'N' Men" Jimmy and his friends get zapped by the Van Pattern Radiation Belt and get superpowers (Cindy has super-strength, Sheen has super-speed, Libby has invisibility, Carl has super-burps and Jimmy simply turns orange), but later when Jimmy loses control of his temper due to Cindy's insultsm he turns into an orange hulk-like monster and begins rampaging through Retroville, Now the rest of the gang must figure how to get him back to normal. November 27, 2004
49 "The Tomorrow Boys" After traveling into the future, Jimmy, Carl and Sheen find out Libby will be the future dictator of the world and now they must save Libby in the present.
Absent: Hugh, Judy
June 17, 2005
50 "My Big Fat Spy Wedding" Jimmy tries to prevent Jet Fusion from marrying a criminal.
Absent: Hugh, Judy
July 22, 2005
51 "Crouching Jimmy, Hidden Sheen" Libby is captured by ninjas and Sheen must learn kung fu to save her.
Absent: Hugh, Judy
November 18, 2005
52 "The Incredible Shrinking Town" Jimmy shrinks the whole town of Retroville. January 23, 2006
53 "One of Us / Vanishing Act" A children's show has hypnotizing powers and turns the town of Retroville against Jimmy, Jimmy spends time with a magician.
Absent: Hugh, Judy
January 24, 2006
54 "The Trouble with Clones" Jimmy tracks down his evil clone once again and attempts to turn him good, but the clone has other ideas. January 25, 2005
55 "The Evil Beneath / Carl Wheezer, Boy Genius" Jimmy travels to the Bahama Quadrangle (a parody of the Bermuda Triangle) to solve the mysterious disappearances surrounding it. Carl wants to impress a girl by making Jimmy seem unintelligent in comparison to him.
Absent: Goddard, Cindy, Libby, Hugh, Judy
January 26, 2006
56 "Who Framed Jimmy Neutron? / Flippy" Jimmy is framed for a crime he didn't commit and goes to jail. Worried that his dad will embarrass him at school, Jimmy installs a chip in Hugh's ventriloquist dummy that makes him tell good jokes, but when it begins possessing Hugh, Jimmy must change "Flippy" back to normal.
Absent: Goddard
January 27, 2006
57 "El Magnifico / Best in Show" Jimmy turns Sheen's dad into a superhero. Goddard runs away from home after losing a pet show and Jimmy, Carl, and Sheen try to find Goddard and Goddard eventually wins the pet show.
Absent: Hugh, Judy
November 25, 2006
58 "King of Mars" Eustace returns and plans to take over Mars, but Eustace redeems himself and joins forces with Jimmy and his friends.
Absent: Hugh, Judy
November 25, 2006
59-60 "The League of Villains" King Goobot returns once more, and recruits every villain Jimmy's ever defeated to be part of his new army to get revenge on him. June 18, 2005[2]
61 "How to Sink a Sub / Lady Sings the News" After Jimmy sends the teachers of his school away for one week, the parents of Retroville fill in as the parents act bizarre. The kids start a news show and Libby gets carried away with her gossip segment revealing Jimmy and Cindy dating and at the end, Jimmy kisses Cindy.
Note: This is the final appearances of Jimmy, Goddard, Carl, Sheen, Cindy, and Libby although Sheen would reappear in Planet Sheen.
Absent: Goddard.
November 17, 2006[3]

Jimmy Timmy Power Hour Specials: 2004–2006[edit]

Prod. No. Title Summary Original airdate
01 "The Jimmy/Timmy Power Hour" Jimmy Neutron and Timmy Turner end in each other's worlds and must work together with the other's group of friends to return things back to normal. May 7, 2004
02 "The Jimmy/Timmy Power Hour 2: When Nerds Collide" Jimmy and Timmy fight over Cindy, while also attempting to save Dimmsdale from the Pixies and Retroville from Professor Calamitous. For the first time, Jimmy's friends end up in Dimmsdale instead of just Jimmy, and Timmy's fairies end up in Retroville instead of just Timmy. January 16, 2006
03 "The Jimmy/Timmy Power Hour 3: The Jerkinators" Jimmy and Timmy join forces to save both of their universes from getting destroyed by an evil monster of their own creation, which almost leads to losing their friends.
Note: This is the final part of The Jimmy/Timmy Power Hour trilogy.
July 21, 2006