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Season 1
Kenny and Chimpy are hired by Professor Triple Extra Large to do chores in his horrible disease storage laboratory, and everyone knows that chimps just aren't careful.
Kenny and Chimpy are hired by Professor Triple Extra Large to do chores in his horrible disease storage laboratory, and everyone knows that chimps just aren't careful.
When the villainous Mr. Wink and Mr. Fibb extend the adult swim time in the neighborhood pool, the Kids Next Door are sent a red alert to stop them. Numbuh 1 suggests employing the
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When the villainous Mr. Wink and Mr. Fibb extend the adult swim time in the neighborhood pool, the Kids Next Door are sent a red alert to stop them. Numbuh 1 suggests employing the Kid-A-Pault, a Kids Next Door weapon to put an end to this tyranny...but their plan fails, leaving them to find other means of battling Mr. Wink and Mr. Fibb.
The group catches wind of some ice cream men who refuse to give ice cream to children, so they interrogate them and get the password to their ice cream factory, only to be in for a major
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The group catches wind of some ice cream men who refuse to give ice cream to children, so they interrogate them and get the password to their ice cream factory, only to be in for a major surprise from the Delightful Children from Down the Lane, because the ice cream that they take turns into a monster that tries to eat them, but eventually gets defeated by a heater that was turned on by Numbuh 3.
Numbuh 4 forces the other operatives to build a "clam cannon" when Numbuh 1 leaves.
Numbuh 4 forces the other operatives to build a "clam cannon" when Numbuh 1 leaves.
The hamsters that power Sector V's weapons suddenly decide to go on vacation, leaving the Treehouse powerless! Meanwhile, the Delightful Children from Down the Lane looks for villains to
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The hamsters that power Sector V's weapons suddenly decide to go on vacation, leaving the Treehouse powerless! Meanwhile, the Delightful Children from Down the Lane looks for villains to attack Sector V, so they send an old lady named Gramma Stuffum, who is fixated on fattening kids, to Sector V's powerless HQ.
The Kids Next Door find a new enemy in the dental hygiene-obsessed vigilante, Knightbrace, after he attacks Numbuh 3 on the way back from a trip to the candy store.
The Kids Next Door find a new enemy in the dental hygiene-obsessed vigilante, Knightbrace, after he attacks Numbuh 3 on the way back from a trip to the candy store.
Captain Stickybeard and his Candy Pirate crew steal Sector V's candy, including Numbuh 5's secret stash. Numbuh 5 does not want her candy stash to be taken, so she boards Stickybeard's
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Captain Stickybeard and his Candy Pirate crew steal Sector V's candy, including Numbuh 5's secret stash. Numbuh 5 does not want her candy stash to be taken, so she boards Stickybeard's pirate ship to retrieve it. The KND have to rescue her and the candy too.
An adult named Lasso Lass (who keeps acting like a kid) wants to help Sector V defeat Mr. Wink and Mr. Fibb.
An adult named Lasso Lass (who keeps acting like a kid) wants to help Sector V defeat Mr. Wink and Mr. Fibb.
When turnips are found everywhere in Sector V's treehouse, they go to the source: a giant turnip, to defeat it.
When turnips are found everywhere in Sector V's treehouse, they go to the source: a giant turnip, to defeat it.
After Numbuh 2 beats a mini-golf champion at mini-golf, the golfer shrinks Numbuh 2, and many sights from around the world.
After Numbuh 2 beats a mini-golf champion at mini-golf, the golfer shrinks Numbuh 2, and many sights from around the world.
When his father brings Numbuh 4 to work for "Bring Your Daughter to Work Day", Numbuh 4 discovers his father's boss plans to send him and all the daughters of his co-workers to Pluto.
When his father brings Numbuh 4 to work for "Bring Your Daughter to Work Day", Numbuh 4 discovers his father's boss plans to send him and all the daughters of his co-workers to Pluto.
A fellow operative, Numbuh 30C, is sent to help Sector V stop a villain from using a weather machine to make no more snow days for school. But is there more to this mysterious operative than meets the eye?
A fellow operative, Numbuh 30C, is sent to help Sector V stop a villain from using a weather machine to make no more snow days for school. But is there more to this mysterious operative than meets the eye?
The Delightful Children from Down the Lane attack Sector V's headquarters with an infestation of hair-eating lice.
The Delightful Children from Down the Lane attack Sector V's headquarters with an infestation of hair-eating lice.
Numbuh 1 has a secret girlfriend who he often neglects because of his Kids Next Door responsibilities, forcing her to use a boyfriend helmet to mind-control Numbuh 1. If the helmet stays
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Numbuh 1 has a secret girlfriend who he often neglects because of his Kids Next Door responsibilities, forcing her to use a boyfriend helmet to mind-control Numbuh 1. If the helmet stays on for too long, it will start to merge with Numbuh 1's head and stay on forever.
A fly finds its way into Sector V's headquarters.
A fly finds its way into Sector V's headquarters.
All of the teenagers in Sector V's hometown have formed a place called The Point, and Numbuh 1 suspects that they are helping the adults.
All of the teenagers in Sector V's hometown have formed a place called The Point, and Numbuh 1 suspects that they are helping the adults.
A villainous half-man, half-baby named Mr. B gives the Kids Next Door, a television series of their own.
A villainous half-man, half-baby named Mr. B gives the Kids Next Door, a television series of their own.
A lost baby skunk interferes with a mission to rescue brainwashed campers.
A lost baby skunk interferes with a mission to rescue brainwashed campers.
The Kids Next Door attempt to stop a birthday party for their arch-enemies, the Delightful Children from Down the Lane. The task is made complicated by the presence of the Big
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The Kids Next Door attempt to stop a birthday party for their arch-enemies, the Delightful Children from Down the Lane. The task is made complicated by the presence of the Big Badolescent, a girl who grows alarmingly in size and strength when she does not get her way.
Numbuh 2's little brother, Tommy (who is shunned by Sector V), joins forces with a villain, Common Cold.
Numbuh 2's little brother, Tommy (who is shunned by Sector V), joins forces with a villain, Common Cold.
Two parental villains are stupefying KND operatives around the world; an operative named Chad (Numbuh 274) enlists the help of Sector V.
Two parental villains are stupefying KND operatives around the world; an operative named Chad (Numbuh 274) enlists the help of Sector V.
Sector V tries to destroy all the pianos in a truck with a hamster that acts as Numbuh 4's replacement.
Sector V tries to destroy all the pianos in a truck with a hamster that acts as Numbuh 4's replacement.
Sector V is put into a "kids zoo" and must unite with the Delightful Children from Down the Lane and get all the other children out of their cages before lunch time to escape being fed to the zoo's cannibal bully.
Sector V is put into a "kids zoo" and must unite with the Delightful Children from Down the Lane and get all the other children out of their cages before lunch time to escape being fed to the zoo's cannibal bully.
Numbuh 5 tries to keep the treehouse quiet, so Numbuh 1 can sleep.
Numbuh 5 tries to keep the treehouse quiet, so Numbuh 1 can sleep.
The boss of Rainbow Monkeys Inc. uses Numbuh 3 to find real Rainbow Monkeys for him.
The boss of Rainbow Monkeys Inc. uses Numbuh 3 to find real Rainbow Monkeys for him.
The frustrated Delightful Children from Down the Lane turn to their Father for help destroying Sector V. Numbuh 1 is turned into an adult, the treehouse is destroyed, and their faith is
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The frustrated Delightful Children from Down the Lane turn to their Father for help destroying Sector V. Numbuh 1 is turned into an adult, the treehouse is destroyed, and their faith is shattered; Sector V is forced into a showdown with their most dangerous foe yet.
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