The Adventures of Jimmy Neutron: Boy Genius

The BEST episodes of The Adventures of Jimmy Neutron: Boy Genius

Every episode ever - ranked by fan votes!

The Adventures of Jimmy Neutron: Boy Genius follows Jimmy Neutron, his faithful robotic dog, Goddard, and his eclectic friends and family as they experience life in Retroville. Jimmy is a typical kid, who just happens to be a genius. He creates gadgets to improve his everyday life, but his inventions go awry more often than not, and hilarious trouble ensues.

Last Updated: 5/3/2022Network: Nickelodeon
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Nightmare in Retroville
star
9.23
13 votes

#1 - Nightmare in Retroville

Season 2 - Episode 4 - Aired 10/29/2003

Jimmy's Neutronic Monster-Maker transforms Sheen into a werewolf, Carl into a vampire, and Hugh into Frankenstein's monster. However, Jimmy's invention works too well, making those three real monsters! The little genius's Halloween is complicated when Carl and Sheen bite Cindy and Libby - now there are five monsters chasing him! Invention: Neutronic Monster-Maker.

Watch Now:AmazoniTunes
The Tomorrow Boys
star
8.09
11 votes

#2 - The Tomorrow Boys

Season 3 - Episode 3 - Aired 5/23/2005

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?

Directors: Keith Alcorn
Watch Now:AmazoniTunes
Journey to the Center of Carl
star
8.08
38 votes

#3 - Journey to the Center of Carl

Season 1 - Episode 22 - Aired 1/31/2003

Jimmy creates a Sick Patch to make him and his classmates get sick and stay out of school. But when the Sick Patch dissolves into the kids' skin, Jimmy has to go inside Carl to track down the germ and make a vaccine. Invention: Neutronic Sick Patch

Directors: Keith Alcorn
Watch Now:Amazon
Love Potion #976/J
star
7.95
39 votes

#4 - Love Potion #976/J

Season 2 - Episode 9 - Aired 2/13/2004

Jimmy shows off his latest invention – a love pheromone – to Carl and Sheen. Anyone exposed to it will fall in love with the first person he or she sees. Jimmy thinks his potion is stored safely in the containment chamber, but Carl accidentally opens it – and love is literally in the air, exposing them all! And Cindy Vortex is the first girl Jimmy sees! Will Jimmy be able to reverse the effects of his latest invention, or will love conquer all? Inventions: Phermone Number 976/J

Watch Now:AmazoniTunes
Beach Party Mummy
star
7.93
45 votes

#5 - Beach Party Mummy

Season 2 - Episode 1 - Aired 9/19/2003

Bored by a class documentary on mummies, Jimmy decides to take Carl, Sheen, Libby, and Cindy along with him to see the real deal. But when his Electro-Life gizmo accidentally brings the mummies to life, Jimmy's got to keep himself and his friends from becoming the latest addition to Queen Hazabataslapya's Tomb. Invention: the Electro-Life.

Directors: Keith Alcorn
Watch Now:AmazoniTunes
The Retroville 9
star
7.93
41 votes

#6 - The Retroville 9

Season 2 - Episode 2 - Aired 10/3/2003

Jimmy's determination to captain a winning baseball team leads him to rev up the equipment with Neutronic technology. When the team unexpectedly reaches the World Championship, Jimmy has a crisis of conscience. Inventions: Hydraulic-force amplifying bat, Sphere-seeking gloves.

Watch Now:AmazoniTunes
Party at Neutron's
star
7.82
34 votes

#7 - Party at Neutron's

Season 1 - Episode 24 - Aired 2/17/2003

Party at Neutron's 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? Invention: Time Accelerator.

Directors: Keith Alcorn
Watch Now:Amazon
Sheen's Brain
star
7.75
12 votes

#8 - Sheen's Brain

Season 2 - Episode 10 - Aired 3/8/2004

Jimmy tries to stop Sheen from getting left back in school by turing his Brain Drain Helmet into a Brain Gain Helmet. However, his plan backfires when Sheen's I.Q. – as well as his head – inflates to a destructive degree. Invention: Brain Gain Helmet

Watch Now:AmazoniTunes
Grumpy Young Men
star
7.71
38 votes

#9 - Grumpy Young Men

Season 2 - Episode 3 - Aired 10/3/2003

Jimmy, Carl, and Sheen use Jimmy's Metabolic Accelerator so they can be old enough to buy a violent video game. The machine works a little too well, and the boys end up as senior citizens. Inventions: Metabolic Accelerator, Experimental Truth Serum

Watch Now:AmazoniTunes
Lights! Camera! Danger!
star
7.70
40 votes

#10 - Lights! Camera! Danger!

Season 3 - Episode 1 - Aired 11/27/2004

The gang enters a script-writing competition, where the winning script will get turned into a movie! The director, Quentin Smithee, chooses Jimmy, Cindy, Libby, Sheen, and Carl (much to Hugh's disappointment) to star in Jimmy's movie, which will be shot entirely in Retroville. During the filming, however, dangerous on-set "accidents" start to happen, and the rest of the kids start to doubt starry-eyed Jimmy and inexperienced Smithee.

Directors: Keith Alcorn
Watch Now:AmazoniTunes
Ultra Sheen
star
7.67
6 votes

#11 - Ultra Sheen

Season 1 - Episode 25 - Aired 2/17/2003

Jimmy's new invention lets you actually be a player in your favorite video game! Sheen enters UltraLord Versus Robo-Fiend and is later joined by Jimmy. But when Carl enters in Llamapalooza, Jimmy's faced with the problem of getting them all back into the real world. Invention: Neutronic Game Pyramid.

Directors: Keith Alcorn
Watch Now:Amazon
Make Room for Daddy-O
star
7.57
7 votes

#12 - Make Room for Daddy-O

Season 1 - Episode 30 - Aired 6/6/2003

The Father's Day talent show is only a few days away, and Jimmy has to perform with his Dad. Hugh can't wait for the big night. Jimmy, on the other hand, is afraid of being disgraced in front of the entire school. Sure he loves his dad, but why must Hugh be so dorky and un-cool? So Jimmy invents a device that will alter Hugh's personality, making him the coolest dad in Retroville. The invention's a success. Hugh is so cool he becomes a huge celebrity. But now this new-and-improved Hugh is too cool to spend time with his son. Jimmy must now come up with a last minute solution that will turn Hugh back into the dad he loves. Inventions: Neutronic De-dorkenator, mirco-fiber-optic tether net.

Directors: Keith Alcorn
Watch Now:Amazon
Men At Work
star
7.50
8 votes

#13 - Men At Work

Season 2 - Episode 19 - Aired 6/2/2004

To raise money for his inventions, Jimmy decides that he, Sheen, and Carl should get jobs. Skeet, employee of the month at McSpanky's, hires Sheen and Carl, but doesn't think Jimmy's the "McSpanky type," though he agrees to try Jimmy out. Jimmy, however, is not pleased with the brainless (and humiliating) work he has to do, so he takes it upon himself to show everyone what he's capable of - by bringing McSpanky's into the 21st century. Inventions: Hover Hats, Bee-Be-Gone, McSpanky's improvements (including a tongue scanner and Customer Satisfaction).

Directors: Mike Gasaway
Watch Now:AmazoniTunes
Fundemonium
star
7.45
11 votes

#14 - Fundemonium

Season 3 - Episode 4 - Aired 5/24/2005

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 Nanobots return again to wreak more havoc....

Watch Now:AmazoniTunes
Vanishing Act
star
7.43
7 votes

#15 - Vanishing Act

Season 3 - Episode 13 - Aired 1/24/2006

Jimmy tries to become a magician to impress Betty, but something goes horribly wrong, and he ends up transporting the group into alternate universes.

Watch Now:AmazoniTunes
One of Us
star
7.43
7 votes

#16 - One of Us

Season 3 - Episode 12 - Aired 1/24/2006

A children's show has hypnotizing powers and turns the town of Retroville against Jimmy.

Watch Now:AmazoniTunes
My Big Fat Spy Wedding
star
7.40
10 votes

#17 - My Big Fat Spy Wedding

Season 3 - Episode 9 - Aired 7/22/2005

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!

Watch Now:AmazoniTunes
Who's Your Mommy
star
7.38
8 votes

#18 - Who's Your Mommy

Season 3 - Episode 7 - Aired 6/20/2005

Carl gets infected by a "face-hugging" parasite, and becomes pregnant with an alien baby.

Watch Now:AmazoniTunes
Jimmy For President
star
7.30
40 votes

#19 - Jimmy For President

Season 2 - Episode 6 - Aired 11/11/2003

Jimmy runs for class president against Libby, Sheen and foreign exchange student Bolbi, and Carl ends up being forced by each of them to vote for them.

Watch Now:AmazoniTunes
The Trouble with Clones
star
7.29
7 votes

#20 - The Trouble with Clones

Season 3 - Episode 14 - Aired 1/25/2006

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....

Watch Now:AmazoniTunes
Time Is Money
star
7.24
17 votes

#21 - Time Is Money

Season 1 - Episode 7 - Aired 9/20/2002

Through the wonder of time travel; Jimmy goes 15 years into the past to a time when his parents were swinging sweethearts. Jimmy's investment tip changes the future so that the Neutrons become fabulously rich - but with unintended consequences!

Directors: Keith Alcorn
Watch Now:AmazoniTunes
Holly Jolly Jimmy
star
7.22
9 votes

#22 - Holly Jolly Jimmy

Season 2 - Episode 8 - Aired 12/8/2003

Jimmy is convinced that Santa Claus does not exist. To prove his theory once and for all, Jimmy travels to the North Pole with Carl and Sheen. The boys find Santa's workshop, but Jimmy thinks it's just another toy factory. In fact, nothing they see convinces Jimmy otherwise. When his homing device accidentally emits a blast of energy to the source of the signal, Santa's atoms get scrambled. With Santa temporarily out of action, who can deliver the presents? Jimmy must now put his doubts aside, load up the hypercube, and try to save Christmas before the people of Retroville make up a new holiday. Inventions: Reindeer Scenario 8.20-B, Jingle Bell-Powered Sonic Propultion Unit, Laser-Guided Navigational Beacon (Goddard's red nose), Warp Module

Watch Now:AmazoniTunes
Monster Hunt
star
7.20
10 votes

#23 - Monster Hunt

Season 2 - Episode 5 - Aired 11/11/2003

Jimmy, Sheen, Carl and Captain Betty set out on a mission to capture the lake monster that has haunted Lake Retroville for at least six months. Inventions: Sonar Scanner, Demutation Pellet.

Watch Now:AmazoniTunes
Crime Sheen Investigation
star
7.19
36 votes

#24 - Crime Sheen Investigation

Season 1 - Episode 21 - Aired 11/30/2002

Sheen's oldest and most prized UltraLord is missing! It's up to Jimmy, playing a high-tech Sherlock Holmes, to find it. Inventions: UltraShock Dance Teacher 8000, Neutra-Scope.

Directors: Keith Alcorn
Watch Now:Amazon
Krunch Time
star
7.16
37 votes

#25 - Krunch Time

Season 1 - Episode 18 - Aired 11/15/2002

Jimmy determines to create a perfect snack: sour, creamy, sweet, chewy, etc. - all at once! When he finally gets the formula right, the snack turns out to be too perfect ... and everyone in Retroville becomes hopelessly addicted to it!

Directors: Keith Alcorn
Watch Now:Amazon