Jimmy Neutron Episodes - guide and summaries on YTV.com

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Episodes

Season 1 Season 2 Season 3 Season 4

Season 1

EPISODE 01A/1B – “WHEN PANTS ATTACK”
Jimmy inserts a “smart chip” into his pants so that they will fold and put themselves away, but they soon develop a mind of their own.

EPISODE 02A – “NORMAL BOY”
Jimmy complains about being too smart, so he invents a machine that reduces his awesome brainpower. But now who’s going to save Retroville?

EPISODE 02B – “BIRTH OF A SALESMAN”
Jimmy applies his genius to the world of door-to-door salesmanship in order to beat Cindy in the school’s candy-selling contest.

EPISODE 03A – “BROBOT”
Jimmy constructs the perfect little brother he never had, “Brobot”. Brobot is not only more popular than his creator, but he’s very annoying!

EPISODE 03B – “THE BIG PINCH”
To settle an argument about who really invented radio, Jimmy brings Thomas Edison to the present. But Edison takes a shine to Miss Fowl and refuses to return to his own time!

EPISODE 04A – “GRANNY BABY”
Jimmy gives his Granny his new youth tonic. However, the potion works too well and Granny ends up as a talking baby!

EPISODE 04B – “TIME IS MONEY”
Jimmy goes 15 years into the past to a time when his parents were swinging sweethearts -- but with unintended consequences!

EPISODE 05A – “BATTLE OF THE BANDS”
Jimmy, Carl and Sheen enter the school talent contest, but egos swell out of control, and the ensuing bickering between the band-members almost destroys their friendship.

EPISODE 05B – “JIMMY ON ICE”
Jimmy’s attempt to cool off the summer heat wave in Retroville has the unexpected result of plunging the city into a new Ice Age.

EPISODE 06A – “I DREAM OF JIMMY”
Carl is sleep-deprived from a recurring nightmare and, so Jimmy enters Carl’s dream to figure out what his friend is so afraid of.

EPISODE 06B – “RAISE THE OOZY SCAB”
The gang sets off in a submarine in search of a famous shipwreck at the bottom of Retroville Bay and Jimmy’s mounting frustration inspires mutiny among the “swabees”.

EPISODE 07A – “MY SON THE HAMSTER”
Jimmy’s teleporting goof-up leads to him switching heads with Carl’s pet hamster.

EPISODE 07B – “PHANTOM OF RETROLAND”
In the interest of science, Jimmy sets out to disprove an urban myth about the Amusement Park Phantom with the help of his reluctant friends Carl and Sheen.

EPISODE 08A – “SEE JIMMY RUN”
Jimmy adapts his running shoes so that he can move at lightning speed. Unfortunately, he gets stuck in super-fast mode and has to figure out how to slow down.

EPISODE 08B – “TRADING FACES”
Jimmy comes up with an invention that will allow him to read Cindy’s mind. But Jimmy’s mind ends up in Cindy’s body and vice-versa!

EPISODE 09A – “HYPNO-BIRTHDAY TO YOU”
Jimmy hypnotizes his parents to think that tomorrow is his birthday. Unfortunately they think Jimmy turns 18 and they're kicking him out of the house.

EPISODE 09B – “HALL MONSTER”
Jimmy becomes the new hall tyrant and his friends are determined to end his reign of hall terror.

EPISODE 10A – “KRUNCH TIME”
Jimmy comes up with a snack that is even tastier than everyone’s favourite, Cheese Goobies, and everyone becomes hopelessly addicted.

EPISODE 10B – “SUBSTITUTE CREATURE”
Miss Fowl accidentally swallows a seed from Jimmy’s DNA-accelerated spinach plant

EPISODE 11A – “CRIME SHEEN INVESTIGATION"
Sheen's latest Ultra-Lord action figure is missing and he's in a panic, and all signs start to point to Jimmy as the culprit.

EPISODE 11B – "SAFETY FIRST"
A bully has been giving Jimmy a rough time so he creates an electronic bodyguard piloted by Nano-bots.

EPISODE 12A – “PROFESSOR CALAMITOUS”
Mad Professor Calamitous schemes to make Jimmy his “scientific slave,” and force the boy genius to complete the professor’s unfinished inventions.

EPISODE 12B - "JOURNEY TO THE CENTER OF CARL"
Jimmy’s classmates suffer incessant flu-like symptoms so he shrinks himself and Sheen to go into Carl’s system to find the ingredients for a cure.

EPISODE 13B - "ULTRA SHEEN"
Jimmy’s friends get trapped in a video game, requiring Jimmy to go in and save him.

EPISODE 13A - "SLEEPLESS IN RETROVILLE"
Jimmy invents a machine that maximizes sleepover fun, but when Carl sits on the keyboard, he mistakenly creates a pizza-monster that causes trouble.

Season 2

EPISODE 14A - "MAXIMUM HUGH"
Jimmy outfits his dad with a bionic sweatband to give their team the competitive edge at the annual parent-child picnic.

EPISODE 14B - "Aaugh!"
Hugh takes Jimmy, Carl and Sheen camping in the wild – sans “frilly luxuries” like a compass or toilet paper -- to test their heartiness against the great outdoors and, much to Hugh’s surprise, a ferocious bear who wants to have them for dinner.

EPISODE 15B - "BROADCAST BLUES"
Jimmy’s “Science With Jimmy” show on public access TV fails to pull in the ratings and Cindy is hired as his producer.

EPISODE 15A - "PARTY AT NEUTRONS"
When Hugh and Judy go out for the evening, Jimmy invites the gang over for a party. Chaos ensues as the revelers abuse Jimmy’s inventions.

EPISODE 16A/B 17A/B – “THE EGG-PIRE STRIKES BACK”
Jimmy discovers some evidence that reveals the Yolkian's true intentions, to take over Retroville.

EPISODE 18A/B – Father's Day Special: "MAKE ROOM FOR DADDIO"
Hugh’s personality, making him the coolest dad in Retroville, but now he’s too cool to spend time with this own son.

EPISODE 19A/B - "LOVE POTION 9.368"
A laboratory mishap exposes the boys to a powerful pheromone that causes each of them to fall madly in love with the next female he sees

EPISODE 20A/B - CHRISTMAS SPECIAL
With Santa temporarily out of action, Jimmy must load up the hypercube, and try to save Christmas before the people of Retroville make up a new holiday.

EPISODE 21A/B - "A BEAUTIFUL MIND"
When a mysterious meteor encrusted with precious gems plummets to earth, Jimmy and company decide to head into space to mine the priceless asterubies. There, they encounter a trio of space bandits who wish to relieve them of their treasure.

EPISODE 22A/B - "SORRY, WRONG ERA"
Jimmy invents the Quantum Replay 9000 which enables him to go back in time. When Hugh gets a hold of it, he accidentally sends Jimmy, Carl and Sheen back 200 million years. Now Jimmy has to figure out how to get back while staving off a rampaging T-Rex.

EPISODE 23B - "GRUMPY YOUNG MEN"
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.

EPISODE 23A - "RETROVILLE 9"
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.

EPISODE 24A/B - "BEACH PARTY MUMMY"
Bored by a class discussion on mummies, Jimmy decides to take his classmates 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.

EPISODE 25 & 26 - "OPERATION: RESCUE JET FUSION"
Jimmy is enlisted as a spy by the Big Top Secret Organization. His mission: find and rescue Agent X. When Agent X turns out to be Jimmy’s movie hero, Jet Fusion (and a super spy off the big screen as well), Jimmy and Jet team up to save the world from the nefarious Professor Calamitous and his beautiful, gorgeous daughter, Beautiful Gorgeous.

Season 3

EPISODE 27 A/B - "RETURN OF THE NANOBOTS"
Jimmy attempts to update those mischievous Nanobots (last seen in “Safety First”) in order to correct errors in his homework, but the Nanobots take it upon themselves to correct everything for error. Finding the human race to be irredeemably flawed, they decide to delete them!

EPISODE 28 - “THE JIMMY-TIMMY POWER HOUR”
After blowing off yet another science fair project, Timmy Turner wishes for access to the greatest laboratory in the universe, where he can easily get his hands on quick gadget. However, Wanda and Cosmo cannot come along, so they give him an “Auto Poofer” that will automatically poof him back to his room. Poof! Timmy is magically sent to the secret lab of none other than Jimmy Neutron, the boy with the genius IQ. Timmy immediately starts playing with all of the cool inventions that are at his fingertips, much to the chagrin of his disinclined host. But before Jimmy can find a way to get rid of this strange, annoying kid, he accidentally pushes Timmy’s Auto Poofer and is instantly transported to Timmy’s world. Poof! Now both boys get to spend some time living in each other’s three and two dimensional shoes, respectively; Timmy has everyone in Retroville convinced that he’s a boy genius, while Jimmy gets to hang out with some real fairy godparents. But with these perks comes two massive drawbacks: Timmy Turner combats a malfunctioning Goddard that’s threatening to destroy Retroville, and Jimmy Neutron has to battle Timmy’s crazed, fairy obsessed school teacher, Mr. Crocker who has managed to get into – of all places – fairy world.

EPISODE 29 - “NIGHTMARE IN RETROVILLE”
Carl and Sheen are looking for the ultimate scary costume for Halloween, and Jimmy is just the kid who can help. With his latest invention, The Neutronic Monster Maker, Jimmy transforms his friends’ physical appearances into those of a Vampire and Werewolf. But the effects of the transformation don’t stop at crazy body hair and pointy teeth; Carl and Sheen quickly mutate into real monsters.

EPISODE 30 A/B - “ATTACK OF THE TWONKIES” pt. 1
After a horrific skirmish with an abominable, six foot space beast, Jimmy returns from an excavation on the Twonkus-3 comet with a small furry creature burrowed in his soil samples. Jimmy immediately wants to send the cuddly critter back to space, in light of the danger of disrupting the delicate space-earth balance. But Carl wants to adopt the little fellow as a pet, name him “Twonky” and introduce it to the rest of the kids.

EPISODE 31 - “ATTACK OF THE TWONKIES” pt. 2
After a horrific skirmish with an abominable, six foot space beast, Jimmy returns from an excavation on the Twonkus-3 comet with a small furry creature burrowed in his soil samples. Jimmy immediately wants to send the cuddly critter back to space, in light of the danger of disrupting the delicate space-earth balance. But Carl wants to adopt the little fellow as a pet, name him “Twonky” and introduce it to the rest of the kids. The Twonky is an immediate hit, especially after it coughs up a dozen more identical colorful creatures just like it. Now everyone in Retroville has his very own Twonky and things are great – except when the Twonkies are exposed to music.

EPISODE 32 A/B - “MONSTER HUNT”/“JIMMY FOR PRESIDENT”
“MONSTER HUNT”A lake monster has been spotted off the coast of Retroville, and all the town is in panic except for Jimmy who doubts the monster’s existence. Armed with a collection of homing devices, his two best friends and a surly sea captain named Betty, Jimmy sets out to disprove the myth in an aquatic adventure straight out of “Jaws.” “JIMMY FOR PRESIDENT” It’s time for the school elections, and this year’s candidates for class president are Jimmy, Sheen, Libby (with Cindy as her campaign manager) and the new kid in school, Bolbi.

EPISODE 33 - “SHEEN’S BRAIN”
Sheen is one math test away from being left back, so Jimmy turns his Brain Drain helmet into a Brain Gain helmet and uses it on his buddy, instantly quadrupling Sheen’s IQ. With his new and improved brain, Sheen aces the math test in record time and passes the class. But his brain is still gaining, and soon Sheen develops the power to read thoughts and move objects with his mind. If Jimmy doesn’t reverse the effects of the Brain Gain helmet, not only will Sheen’s power continue to increase, his brain could grow until it explodes. But how can Jimmy get his friend to listen to him when The All Powerful Sheen has declared himself ruler of Retroville?

EPISODE 34 A/B - “MATERNOTRON KNOWS BEST”/“SEND IN THE CLONES”
“MATERNOTRON KNOWS BEST” Judy Neutron sends herself to a spa for a week, leaving Jimmy and Hugh to take care of the chores and take care of themselves in her absence. So Jimmy invents The Maternotron 6000, a robot programmed to act as Mom and Maid, allowing the guys to goof off all weekend long. However, Maternotron takes her job a little too seriously, and Jimmy and Hugh quickly find themselves in an overprotective -mother lock-down. “SEND IN THE CLONES” Jimmy clones himself to complete a series o f chores while he gathers ice crystals in outer space.

EPISODE 35 A/B - “THE FEUD”/“THE GREAT EGG HEIST”
“THE FEUD” Jimmy and Carl are caught in the middle of a lawn-related feud between their dads. Forbidden to hang out or even speak via holographic projection, the boys have to employ some very drastic measures to end the feud and restore peace to the neighborhood. "THE GREAT EGG HEIST" The mysterious and beautiful Asian princess, Peggy Tsu needs Jimmy Neutron’s help retrieving the priceless Egg Drop Jade from the Retroville Museum before her evil brother steals it for his own nefarious purposes. Jimmy enlists the help of Sheen, Carl, Cindy and Libby to carry out the task.

EPISODE 36 A/B - "OUT DARN SPOTLIGHT”
Jimmy is desperate to get the staring role opposite dream girl Betty Quinlan in the school musical, “Macbeth in Space.” But the only part he can land is the FX master backstage. Determined to impress Betty any way he can, Jimmy devises the most phenomenal special effects in the history of theater, including a live storm that appears on stage… and quickly grows into a thunderous tornado that tears the auditorium apart.

EPISODE 37 A/B – “THE JUNK MAN”
Jimmy’s little robotic brother, Brobot needs his help. His parents, Mombot and Popbot, have been abducted by the terrifying Junk Man, a galactic space scoundrel who plans to dismantle the robots and sell their parts to the highest bidder. When Jimmy, Carl, Sheen and Goddard get caught in the Junk Man’s ship, they must rescue Brobot’s parents and get back Jimmy’s rocket before the Junk Man ejects them all into infinity with the space refuse.

EPISODE 38 A/B – “FOUL BULL”/“THE SCIENCE FAIR AFFAIR”
“FOUL BULL” During a class trip to a rodeo, Jimmy, Carl and Sheen fall for a cute little cowgirl named Sally. To prove themselves worthy of Sally’s heart, each of the boys set o ut to master a specific rodeo talent. Sheen turns himself into a Rodeo Clown, and Carl wrestles pigs, but it’s Jimmy who comes out the victor with his impressive bull riding – and fool proof robotic bull of course. “THE SCIENCE FAIR AFFAIR”Cindy Vortex leads a campaign to ban Jimmy from the school’s science fair citing unfair competition. But even an ousted Jimmy Neutron steals the spotlight when his patented oil-generating machine earns him a Nobel Prize for Science – then malfunctions and places everyone at the science fair in grave danger.

EPISODE 39 – “MEN AT WORK”
The boys get jobs together at the local burger joint, McSpanky’s. Carl and Sheen blossom in their tasks as short order cook and drive-thru attendant while Jimmy gets stuck with all the humiliating tasks like wearing a hamburger suit in the middle town. Determined to prove that he can be the best fast food employee, Jimmy transforms McSpanky’s into the ultimate fully-automated restaurant compete with a central computer that monitors customer satisfaction and adjusts its burger production accordingly.

EPISODE 40 A/B – “BILLION DOLLAR BOY”/“THE MIGHTY WHEEZERS”
“BILLION DOLLAR BOY” Jimmy and company are invited to the home of Eustace Stritch, Boy Billionaire, a kid who is used to always getting what he wants - and this time what he wants is Jimmy’s dog. When Jimmy informs him that Goddard is not for sale, Eustace proposes they wager a bet for Goddard in a battle between the robotic canine and one of Eustice’s lethal RA Unit prototypes. “THE MIGHTY WHEEZERS” Jimmy is sta ying with Carl and his family while his parents are away for the weekend. Normally a sleep-over at his best friend’s place would be a blast. But this is the Wheezers’ house where every waking moment is filled with preventative treatments against germs, pollen and intestinal disorders; and you have to go to bed at 7:30 too! So Jimmy secretly administers the each member of the Wheezer family Total Health Boost Caplets, pills designed to temporarily rid them of their myriad ailments.

EPISODE 41, 42 & 43 - “YOU BET YOUR LIFE FORM” - 3 PARTER
Strange space rocks with cryptic markings are landing on planets throughout the galaxy. When one falls to Earth, Jimmy recognizes it as a “message rock” of the type that’s been falling on Earth sporadically for the last 500 years. The people of Retroville have different ideas of what the rock is and what they should do with it. Jimmy disagrees with them all and wants to respond to the alien senders. However, the Army confiscates it first. Jimmy pleads with them to let him decipher it, but to no avail. Unable to believe that anyone else could possibly be right, Jimmy convinces Carl, Sheen, Libby and Cindy to break into the Army base and decipher the rock in cloak of night to answer its riddle. Suddenly, a shaft of light sucks the kids up in the air and deposits them into the TV studio of “Intergalactic Showdown,” an alien game show. By not listening to anyone else, Jimmy mistakenly catapults the gang into a contestant search; one that has pit the Earth against three other alien races in a multi-event game in which the losing teams get their home planets destroyed! Now, Jimmy and his friends must compete against advanced brains and savage alien characters for the survival of the planet Earth.

EPISODE 44 - “THE TOMORROW BOYS”
After a quick stop at Libby’s birthday party, the boys travel into the future with Jimmy’s latest invention to learn what cool and impressive lives await them. But when they get to Future Retroville, they are shocked to learn that the entire town has fallen under the totalitarian rule of… Libby? How could their friend turn into a tyrannical dictator? The answer is in the form of a vile that contained Essence of Megalomania which Jimmy accidentally gave to Libby as a birthday present.

EPISODE 45 - “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 an inventor at the local toy factory where he becomes responsible for inventing one new toy each day. But all of his inventions stink. So Jimmy takes it upon himself to secretly modify his dad’s work every single night.

EPISODE 46 - “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. Once filming begins, the kids are quickly caught in a series of life-threatening accidents. With a little detective work, Jimmy discovers that Quintin Smithee is really his arch nemesis, Professor Finbar Calamitous come to take his revenge on Jimmy and all his friends.

EPISODE 47 A/B - “CLASH OF THE COUSINS”/“WHO’S YOUR MOMMY?”
“CLASH OF THE COUSINS" The entire Neutron family has gathered to celebrate the birthday of Great Aunt Maybelline. When Jimmy’s present to Maybelline explodes, everyone suspects him of fowl play. But the explosion was the work of another Neutron at the party, an evil genius Neutron, and Jimmy has to find out who that genius is before the entire family is destroyed. “WHO’S YOUR MOMMY?” On a trip to Planet Schmengy, a strange alien substance attaches itself to Carl’s face. The weird stuff is removed, and the kids return to life as normal. But soon Carl starts to exhibit dramatic mood swings, his food cravings become stranger and stranger, and a mysterious growth takes form on his backside. After running a series of tests, the answer is both clear and very very creepy – Carl is pregnant, or at least the host to an alien life form that has taken root in his butt.

EPISODE 48 - "STRANDED"
A trip gone wrong ends up turning even worse when Jimmy and Cindy get into an argument that winds up getting them stranded together.

EPISODE 49 - "JIMMY GOES TO COLLEGE"
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 Seymour.

EPISODE 50 - "INCREDIBLE SHRINKING TOWN"
Jimmy accidentally shrinks the town of Retroville. Can he get it back to normal size before they're crushed?

EPISODE 51 - "CROUCHING JIMMY, HIDDEN SHEEN"
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.

EPISODE 52 A/B - "ONE OF US"/"VANISHING ACT"
"ONE OF US" Everyone in town is acting strangely, so it's up to Jimmy and Cindy to figure out why and reverse the effects. "VANISHING ACT" Jimmy tries to become a magician to impress Betty, but something goes horribly wrong, and he ends up transporting the group into alternate universes.

EPISODE 53 - "THE TROUBLE WITH CLONES"
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....

EPISODE 54 A/B - "CARL WHEEZER, BOY GENIUS"/"THE EVIL BENEATH"
"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. 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 who wants to make them into slaves!

EPISODE 55 - "THE N MEN"
An encounter with the Van Patten radiation belt causes strange mutations in the kids: Jimmy glows orange, Cindy is super strong, Sheen is super fast, Libby can become invisible, and Carl has sonic burps. As the N Men, they work to fight evil in Retroville, but they end up doing more harm than good. The military soon steps in, capturing four of the kids, but only laughing at Jimmy's orange hue. When Jimmy discovers the dark side to his friends' new powers, he must race against time to find a cure - and deal with the effects of his power.

EPISODE 56 - "WHO FRAMED JIMMY NEUTRON?"
Someone's stolen a lot of money ... and the evidence points to Jimmy! Can Carl, Sheen, and Jimmy figure out who's framing the boy genius?

EPISODE 57 - "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?

Season 4

EPISODE 58 A/B - "BEST IN SHOW"/"EL MAGNIFICO"
"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. "El Magnifico" Mr. Estevez wants to impress his son, so he asks for Jimmy's help.

EPISODE 59 - "MY BIG FAT SPY WEDDING"
Beautiful Gorgeous and Jet Fusion are getting married!

EPISODE 60 A/B - "HOW TO SINK A SUB"/"LADY SINGS THE NEWS"
"How to Sink a Sub" Jimmy sends the teachers away for a week, so the parents decide to step in. "Lady Sings the News" The kids become news anchors for a local television network. But Libby's gossip section soon proves to be horrifyingly embarrassing! Can the other kids put a stop to her before it's too late and all their secrets are revealed?

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