Episode 1
Since Jimmy's a scientist, he has more important things to do than pick up his pants - like invent a device that'll do that chore for him. But when the nanochip develops advanced brainial capacity, Jimmy's pants lead an attack on the city of Retroville!
Episode 2
Jimmy is tired of being a genius, so he decides to drain his brain to normal capacity. But when a big meteor heads straight for Retroville, who will save the day?
Episode 3
Miss Fowl's class has a candy-selling contest, with the grand prize being a trip to Retroland! To beat Cindy in the contest, Jimmy invents a robot programmed to sell candy no matter what.
Episode 4
In his lab, Jimmy constructs the perfect little brother he never had, "Brobot".
Episode 5
To settle an argument with Cindy, Jimmy brings Thomas Edison to school.
Episode 6
Jimmy's Granny comes to visit and he gives her his new youth tonic potion.
Episode 7
Jimmy goes 15 years into the past to a time when his parents were swinging sweethearts.
Episode 8
Jimmy and Cindy are forced to collaborate on a science project involving hidden treasure.
Episode 9
Jimmy invents the Dream Injector 5000 and enters Carl's dream to figure out what he is afraid of.
Episode 10
Jimmy's attempt to cool off the summer heat wave results in a new Ice Age.
Episode 11
Jimmy, Carl and Sheen form a band in order to beat out Cindy and Libby for the talent contest first prize.
Episode 12
To get revenge on Cindy for winning a race, Jimmy adapts his running shoes so he can move at lightning speed.
Episode 13
Jimmy comes up with an invention that allows him to read Cindy's mind.
Episode 14
Jimmy tries to disprove Nick's scary tale about the Phantom of Retroland.
Episode 15
Jimmy's teleporting goof-up leads to him switching heads with Carl's pet hamster.
Episode 16
When the old tyrant of a hall monster leaves, Jimmy is picked as his replacement.
Episode 17
In order to get his new chemistry set right away, Jimmy hypnotizes his parents.
Episode 18
Jimmy comes up with a snack that is even tastier than everyone's favorite.
Episode 19
Miss Fowl swallows a seed from Jimmy's DNA-accelerated spinach plant turning her into a 50-foot plant.
Episode 20
Jimmy creates an electronic bodyguard to protect him from a bully.
Episode 21
Sheen's oldest and most prized UltraLord is missing! It's up to Jimmy, playing a high-tech Sherlock Holmes, to find it.
Episode 22
Jimmy creates a "get out of school sick" patch.
Episode 23
Hugh takes Jimmy, Sheen, and Carl on a camping trip into the wilderness, allowing no technology whatsoever. So what will save them when a big problem comes along?
Episode 24
Sheen and Carl convince Jimmy to throw a party when his parents go out to watch Ducks. But when Hugh and Judy come home early, how can Jimmy convince his guests to leave?
Episode 25
Jimmy uses his Neutronic Game Cube to send Sheen into his favorite Ultra Lord video game.
Episode 26
Jimmy lands the spot of host on Lindbergh Elementary's Public Access show! When the show fails miserably, Cindy and Libby are brought in as producer and co-star, changing informative Science With Jimmy to flashy Funky Jam Dance Party (with some science).
Episode 27
The mad Professor Finbarr Calamitous schemes to make Jimmy his "scientific slave."
Episode 28
At the parent-child picnic, Jimmy gives his dad a bionic sweatband to help their team beat Cindy's.
Episode 29
Jimmy is hosting a sleepover with Carl and Sheen! To make it the best slumber party in history, Jimmy invents a machine to make perfect pillows for pillow fights, create made-to-order pizzas, and tell scream-your-head-off scary stories. But what happens if the invention is overloaded and the programs mix up?
Episode 30
The Father's Day talent show is a few days away so Jimmy invents a device that turns dorky Hugh into the coolest dad in Retroville.
Episode 31
Jimmy, Carl, Sheen, Cindy, Libby, and Goddard blast off into space in Jimmy's newly invented spaceship to mine for aster-rubies while fighting off space bandits and their own greed.
Episode 32
Jimmy invents the Quantum Replay 9000 which enables him to go back in time. Hugh accidentally sends Jimmy, Carl, and Sheen back 200 million years.
