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21 episodes
1. Attack of the Twonkies

1. Attack of the Twonkies
Jimmy returns from an excavation on the Twonkus-3 comet with a small furry creature burrowed in his soil samples that have a rather violent reaction to music.
44min
Nov 10, 2004
2. The N Men

2. The N Men
After a run in with a radiation belt in outer space, Jimmy, Cindy, Carl, Sheen and Libby are all endowed with super powers.
24min
Nov 26, 2004
3. Lights! Camera! Danger!

3. Lights! Camera! Danger!
The famous film director, Quintin Smithee is coming to Retroville to make his next big movie, and Jimmy, Cindy, Libby, Sheen and Carl all have starring roles.
23min
Nov 26, 2004
4. Clash of the Cousins/Who's Your Mommy

4. Clash of the Cousins/Who's Your Mommy
The Neutron family has gathered to celebrate Aunt Maybelline's birthday. When Jimmy's present explodes, everyone suspects him of fowl./On a trip to Planet Schmengy, a strange alien substance attaches itself to Carl's face.
24min
Jun 19, 2005
4. Fundemonium

4. Fundemonium
Jimmy's dad loses his job at the now defunct automotive plant which means that the Neutrons may have to move to a new town. As a last-ditch effort to keep the family in Retroville, Hugh applies for a job as a toy inventor.
23min
May 23, 2005
5. Stranded

5. Stranded
After a hovercraft accident in the middle of the ocean, Jimmy and Cindy find themselves stranded on a deserted island.
23min
May 25, 2005
6. Jimmy Goes to College

6. Jimmy Goes to College
Jimmy is recruited by the most prestigious science college in the country to be their new superstar student. But when he gets there, Jimmy becomes the unwitting target of rival student, Seymour Nimmelfarb.
23min
May 26, 2005
7. The Tomorrow Boys

7. The Tomorrow Boys
Jimmy and the boys use Jimmy's latest invention to travel into the future to discover that the entire town has fallen under the totalitarian rule of Libby.
23min
May 22, 2005
8. The League of Villians

8. The League of Villians
King Goobot has organized the most diabolical collection of bad guys to ever assemble on one space station. Their mission: Get Jimmy Neutron.
46min
Jun 17, 2005
10. My Big Fat Spy Wedding

10. My Big Fat Spy Wedding
Jimmy's new mission from the BTSO is to follow Beautiful Gorgeous. He takes the job and he discovers that she and Jet Fusion are getting married!
23min
Jul 26, 2005
10. Trouble With Clones

10. Trouble With Clones
The evil Jimmy clone is back, and he's reconfigured the cloning device to make an evil clone of the Earth with alarming side effect - the real Earth is starting to disappear.
23min
Jan 24, 2006
11. Crouching Jimmy, Hidden Sheen

11. Crouching Jimmy, Hidden Sheen
In Retroville, Sheen is just an average hyperactive kid. But in Shangri Llama he is known as The Chosen One, or One Who Puts Foot Behind Head.
24min
Oct 17, 2005
12. The Incredible Shrinking Town

12. The Incredible Shrinking Town
When the entire population of Retroville is accidentally hit by Jimmy's shrink ray, the Space Bandits abduct everyone with the nefarious plan of marketing and selling them throughout the galaxy as living dolls.
23min
Jan 22, 2006
13. One Of Us/Vanishing Act

13. One Of Us/Vanishing Act
A new TV show turns everyone in Retroville into mindless and exceedingly cheerful zombies./To impress Betty Quinlin, Jimmy performs a magic show using a cheap magic kit that's full of his own technological upgrades.
24min
Jan 23, 2006
16. The Evil Beneath/Carl Wheezer, Boy Genius

16. The Evil Beneath/Carl Wheezer, Boy Genius
Carl's pen pal, Elke Elkberg from Sweden is coming to Retroville to meet him, and Carl is in a panic.The boys travel to the Bahama Quadrangle to disprove the myth of the disappearances associated with the mysterious site.
24min
Jan 25, 2006
17. Who Framed Jimmy?/Flippy

17. Who Framed Jimmy?/Flippy
Jimmy is framed for a break in at the Retroville Bank. When Carl and Sheen attempt to free him from his incarceration, the three boys end up on a chain gang together.
24min
Jan 26, 2006
18. How to Sink a Sub/Lady Sings the News

18. How to Sink a Sub/Lady Sings the News
When Jimmy hides a time displacement device in the teachers' transportation to the annual education convention, the entire faculty of Lindberg Elementary is sent into temporary time limbo.
24min
Nov 16, 2006
19. King of Mars

19. King of Mars
Eustace Strych is back, and he's still determined to humiliatingly defeat Jimmy. Now the race to find an energy source on Mars is on! Who will win?
23min
Nov 24, 2006
19. Jimmy / Timmy Power Hour 2: When Nerds Collide

19. Jimmy / Timmy Power Hour 2: When Nerds Collide
Jimmy Neutron and Timmy Turner vie against each other for Cindy's affections and Prof. Calamitous employs Cosmo and Wanda in his evil plans.
51min
Jul 19, 2002
20. Best In Show/El Magnifico

20. Best In Show/El Magnifico
Goddard is disqualified from the Retroville Pet Show because he is not technically a real dog./Sheen's dad, Mr. Estevez desperately wants to impress his son. Mr. Estevez has to pretend he is a superhero in order to impress him.
23min
Nov 24, 2006
21. Jimmy / Timmy 3: The Jerkinators!

21. Jimmy / Timmy 3: The Jerkinators!
Jimmy and Timmy are at it again: bickering over the affections of Cindy, but somehow end up fighting off enemies together!
49min
Jul 20, 2006
















