Jimmy and the gang enter a script-writing competition, where the winning script gets turned into a movie. Jimmy wins and the director decides to Carl, Sheen, Libby and Cindy in the movie.
On their way back from playing golf on Mercury, Jimmy and the gang inherit superpowers after being exposed to the Van Patten radiation belt.
Jimmy, Sheen, and Carl travel 15 years into the future, only to find that some things have gone wrong. Can they right the past to save their future?
-- Wasting All This Time!
After the car company Hugh works for decides they don't need his services anymore, the Neutrons are faced with the awful prospect of moving. To stay in Retroville, Hugh becomes a toy inventor, and the Nano-bots return again to wreak more havoc.
Who's Your Mommy?
On a return visit to Planet Smangy with Jimmy and Sheen, Carl comes into contact with an alien life form which impregnates him.
Clash of the Cousins
Jimmy's Great Aunt Amanda is having a birthday party, but things go horribly wrong when Baby Eddie tries to destroy them all for Aunt Amanda's money!
A trip gone wrong ends up turning even worse when Jimmy and Cindy get into an argument that winds up getting them stranded together.
Jimmy becomes frustrated at school when his scientific lecture is disregarded in favor of making macaroni sculptures. So, when Dean Cain, head of Pamona University, offers him a chance to enroll in that college to help them win a science grant, Jimmy eagerly accepts. He soon finds, however, that college is a completely different world from elementary school ... a much more challenging one. And when it comes to jealousy of Jimmy's knowledge, Cindy (left behind at Lindbergh Elementary) doesn't hold a candle to new classmate.
After being teased about being short, Jimmy accidentally shrinks the citizens of Retroville.
A kung-fu warrior wants to be The Chosen One in the temple of Shangri-Llama, but Sheen holds that position, with his ability to put his leg behind his head. So, the warrior kidnaps Libby in order to fight with Sheen and claim the title of "The Chosen One" as his own.
One of Us
Everyone in town gets hypnotized by a TV show to act "happy." Jimmy and Cindy have to put a stop to Grandma Tater's show before it's too late!
Jimmy tries to become a magician to impress Betty, but something goes horribly wrong, and he ends up transporting the group into alternate universes.
Evil Jimmy returns! Jimmy needs his evil clone to "be" him so he can up his invention output by staying in his lab while the clone goes to school and spends time with his friends and family, so he tries to make the clone a "Good Jimmy." Of course, things go wrong and Evil Jimmy wreaks havoc around town and creates a cloned Earth with a dark matter chip! Can Jimmy stop him before the real Earth disappears?
Carl Wheezer: Boy Genius
Carl asks Jimmy to help him pretend to be a genius, just for one day, in order to impress a girl names Elke. But Jimmy soon wishes he hadn't.
The Evil Beneath
Jimmy, Carl and Sheen set out to discover the mystery behind the Bahama Quadrangle. They are captured by a mad scientist (Dr. Sydney Moist) who wants to make them into slaves!
Who Framed Jimmy?
Someone's stolen a lot of money ... and the evidence points to Jimmy! Jimmy gets sent to jail for a crime he didn't commit, and soon, Carl and Sheen join him for trying to bust him out of jail. Can they find the real thief before they're locked away for good?
Hugh wants to become a ventriloquist, so Jimmy decides to give him a hand. But his modifications may cause a big problem for his father.
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? During the whole fiasco, Cindy tries to impress and get Jimmy's attention.
Mr. Estevez wants to impress his son, so he asks for Jimmy's help.
Best In Show
Jimmy enters Goddard in a dog show. Goddard easily wins, but he is soon disqualified for being robotic ... so the canine runs away to let Jimmy get a real dog.
Beautiful Gorgeous and Jet Fusion are getting married, but something doesn't seem right to Jimmy. He soon learns it's a ploy to get rid of him and Jet for good.
Songs: Unknown -- I have the ring, Unknown -- We all can sing
King Goobot has gathered up a team of villains comprising of Grandma Taters, The Junkman, Beautiful Gorgeous, Baby Eddie, Professor Calamitous, The Space Bandits and Eustace Strych. Their mission is to get Jimmy Neutron.
Timmy Turner travels to Retroville to ask Cindy to a dance. Jimmy also decides to ask Cindy! So the two battle it off to see who Cindy chooses. Also Professor Calamitous robs the Retroville bank and starts reeking havoc in Dimsdale and Retroville. Will Jimmy and Timmy be able to stop fighting in time to stop Professor Calamitous before he destroys the world? And who will Cindy choose?
How To Sink A Sub
Jimmy sends the teachers of Lindberg elementary away into space for a week. At first it's a blast for the students there but when Carl accidentally informs their parents they decide to take over the school.
Lady Sings The News
Jimmy, Carl and Sheen carry out a hilarious prank on the evening news. The next day Corky Shimazu comes to there school and gives them jobs on The Evening News. At first everything starts off okay but when Libby starts telling every one's secrets in her gossip segment, Da Word, they decide to come up with a plan to stop her before all of there secrets are revealed.
Jimmy and Timmy become crime fighting friends, with the combination of Jimmy's science and Timmy's magic they are unstoppable. There friends becomes so strong that it causes Jimmy to ignore his two best friends Sheen and Carl and it causes Timmy to ignore his two best friends Chester and Aj. They even ignore Cindy. The two then get tired of beating villains so they decide to create an ultimate villain so they can destroy.