The Kids Next Door attempt to stop a party for their enemies.
The Kids Next Door set off on a mission to the ice cream factory.
With Numbuh One away, the Treehouse becomes an easy target for adults
The hamsters that power the Treehouse go on vacation, leaving the team vulnerable.
The Kids Next Door are put in the crosshairs of Knightbraces.
Stickybeard and his crew sniff out the Kids Next Door's candy depository.
The team meets the last member of another era's Kids Next Door.
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 a whole lot of 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 daug...
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. It turns ou...
The Delightful Children From Down The Lane attack Sector V's headquarters with an infestation of hair-eating lice. After the KND find out they don't l...
Numbuh 1 has a secret girlfriend who is bent on mind controling him! So, Numbuh 1's friends have to save Numbuh 1 from being mind controlled or their ...
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.
Can Numbuh 1 stop a camp counselor without the help of 2 and 3? Probably not...
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.
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 bef...
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 Delightful Children from Down the Lane turn to Father for help, and the Kids Next Door are forced into a dangerous showdown.
Numbuh 4 accidently destroys Numbuh 3's favorite toy, and then lands himself in the clutches of the creepy old cat lady and her billions of cats! Will...
When the drinking age of root beer is raised to 13, the Kids Next Door swing into action, delivering soda to speakeasies for youngsters. But soon the ...
After spending a stretch in the slammer for spanking the wrong child, the vampiric villain Count Spankulot vows to use his abilities to help children ...
The Delightful Children From Down the Lane are holding a social, and the KND are invited! Smelling a rat, Numbah One and the team decide to go for a r...
Numbuh 5 is sick at home with the flu, and Numbuhs 1 and 2 take it upon themselves to protect her from the enemy. While at her house, her father lets ...
On a seemingly routine mission, Numbuh 2 seizes a truckload of disgusting tapioca pudding from a trio of masked teenagers; unfortunatly, when trying t...
When Numbuh 4 is sickened by the cutsey "Rainbow Monkeys" double feature movie that the team goes to, he tries to theater-jump into to R-rated "Violen...
It's Numbuh 3's birthday! Her party seems to go well, until the team hears her birthday wish - to lead the team on a mission! Hoping to make her happy...
The KND learn about evil mustaches taking over the faces.
While on a fishing trip with his overbearing, sousaphone-playing father, Numbuh 1 has to rescue him from a kid seeking a father of his own.
Everbody knows that ice cream comes in three basic flavors - chocolate, vanilla, and strawberry. But Numbuh 5 knows only too well the legend of how th...
It is a clear case of Dr. Jekyll and Mr. Hyde when Numbuh 2's attempt to create a formula to strengthen hamsters causes him to transform into a teenag...
It is a sad day in the treehouse, when Chubbo, one of the KND's power-providing hamsters passes away; and it is saddest for the overly sensitive Numbu...
An operative has apparently reached her thirteenth birthday, and is scheduled for decommission; but on route to the moon base, the transport ship carr...
Numbuh 2 and Numbuh 4 visit the grand opening of a cheese-themed restaurant which seems to have a big problem - an appalling lack of cheese! And when ...
Numbuh 1 hears word that a ten-year-old progidy has been accepted into a prestigious British College, and fears that the adults seek to remove his bra...
The team is giving a report on their mission to retrieve a mysterious box, while trying to keep the Delightful Children from getting it. Unfortunately...
The Delightful Children put out a contract on Numbah One's head, and send the most unlikely of assassins - the sentient pair of underpants known as Mr...
The Delightful Children once again hold their annual birthday party in the usual sadistic manner planning to eat their cake and not let any of their u...
On a rountine mission to the Moon Base - in which Numbuh 3 is forced to bring along her kid sister Moshi - the team encounters a seemingly abandoned p...
The KND take a vacation to the beach (and Numbuh 1 promptly leaves, since he hates the place), where Numbuh 3 is quickly kidnapped by the armored Kini...
The Delightful Children have the team right where they want them (again), when suddenly, the helmet headed member (his name revealed as Lenny) pushes ...
Numbuh 2 has always been one of the best pilots in the organization but one day while taking his 2X4 aircraft for a spin, he's shot down by a mysterio...
Father learns that Numbuh 3 is traveling to her homeland to meet up with the secret Japanese branch of the Kids Next Door; so he sends his best spies,...
When Numbuh 1 is fishing with his dad, Numbuh 86 and her group appear and tell him that he's been scheduled for a decommissioning! Although he escapes...
Numbuh 4 learns he is to be sent to a boarding school but he isn't worried, as he's always escaped from them before. But then he learns that the schoo...
The Team attempts to crash the Annual We Hate The Kids Next Door Barbecue, only to find that the party has far more villains than they can handle! The...
Nigel is exhausted and dirty after a hard mission, and when he takes a break, Lizzie intercepts a mission spec from Numbuh 65.3. Deciding to give Nige...
The evil Chester is developing his Happy Headband a strange device he plans to sell to parents to keep kids out of their hair.
It's time for the morning commute to school, and for once, Numbuh 4 is anxious to go, mostly because he has a crush on the new teacher. But on the way...
The Delightful Children kidnap the team's classmate, nerdy, spit-talking ""Leaky"" Leona, and force her to lead them to the dark underbellies of the s...
Feeling that Numbuh 1 must take a day off, the team force him to go to the beach, telling him to have fun or else. Nigel makes an honest attempt - unt...
At the KND Arctic training facility (the second largest KND base in existence, and location of the top secret KND Code Module), young cadet Tommy is
The true history of the genesis of the Adult-Child conflict is revealed. This is the story the Adults do not want you to hear.
Numbuh 86 is having a top-secret girls only slumber party. Numbuh 4 is willing to find out what the slumber party is all about even if it means having...
Numbuh 2 has set up a private eye office in the school janitor closet and soon he gets his first case someone is inflicting students with bad cases of...
Numbuh 3 takes her little sister Mushi for a ride through the Rainbow Monkey Sugar Coated Castle of Love, but what promises to be a day of fun is ruin...
It's the Delightful Children From Down The Lane's birthday again, and that means it's time once again for the Kids Next Door to make off with their fa...
Upon returning to the Treehouse, an injured Numbuh 1 orders a lockdown! But it soon becomes clear that the five are trapped with Count Spankulot! But ...
Hoagie and the gang go to the KND Academy to watch his brother Tommy graduate while Father plans an all-out attack.
Numbuh 4's disgust at anything Rainbow Monkey only increases when he finds himself trapped on Rainbow Island.
Numbuh 5 journeys to the exotic Al-Suhgar Desert to recover her stolen candy, the Blurpleberry Supreme, and discovers she's not the only one searching...
Numbuh 4 tries to get his candy back from Stickybeard on Halloween.
The KND try to get the Fourth Grade Class President to his Town Council meetings safely. A parody of Air Force One. Hurt Operative Safely Protected In...
An important operative suffers an accident on a dangerous mission and is sent to the hospital. But one ex-KND member is out to scramblify his brain, a...
Numbuh 4 accidentally eats a brussels sprout, sending the rest of the KND on an emergency Fantastic Voyage to stop the dreaded vegetable from being di...
Numbuh 5 takes on a vicious dog who is always eating her homework.
Numbuhs 2 and 5 must rescue the first grade class's pet rabbit before it is turned into a chocolate bunny by Heinrich Von Marzipan.
The villains attempt to capture the KND Treehouse, but the Toilenator, trying to be helpful, only hinders their plans.
The KND are dismayed to discover that Grandma Stuffum is the new cafeteria lunch lady and she's got some pretty nasty recipes to foist on her pint-siz...
A dinner get-together between Numbuh 2 and Numbuh 3's respective families turns sour when Numbuh 3's Posh Party Rainbow Monkey doll is badly damaged w...
Numbuh 4 discovers a chicken nugget that initiates a chicken nugget rush.
The Kids Next Door have the misfortune of swapping the Toilenator to Mr. Boss with the unlucky Numbuh 13, who informs the operatives of the adult vill...
Numbuh 4's newly-installed backyard pool is the portal into an alternate dimension where everything is the opposite of everything in the real world.
The Delightful Children From Down the Lane decide to give their birthday cake to the winner of the annual Tubathon race and everyone is eager to go fo...
The brothers Gilligan have gotten a new babysitter: the villainous Cree Lincoln! For Numbuh 2, this will either be a dream come true or a nightmare.
Everyone's collections of Rainbow Monkey toys are mysteriously vanishing. The KND investigate and discover the toys revolving around the planet Saturn...
Numbuh 5 goes to the planet Mars to pick up some marshmallows as part of dessert with her family after dinner. But upon her return, she discovers her ...
Numbuh 4 is forced to choose between helping the KND battle the villainous Soccer Mom or engaging at his new gig as a matador in the Bully Fights.
Lizzie had made a romantic lunch for both her and "Nigie", but it gets stolen by Robin Food and his Hungry Men, who rob from the young and give to the...
The KND discover that they're out of Rainbow Munchies cereal, so they try to go to a grocery store to get some more. But the only grocery store that s...
Numbuh 1, both literally and figuratively, risks his neck when he sides with an adult to rid children of snake-like ties.
A boy gets lost in a closet and the KND are on the job in no time.
Numbuh 1 is sick in bed with a cold on a snow day. Even worse, the villainous Fourth Grade President is determined to bring the children, who are all ...
An operate named Maurice is decommissioned from the Kids Next Door after he attains the age of 13. He has been working on a cure for chicken pox. The ...
Numbuh 3 stars as the lead female in a "West Side Story"-style romantic musical. But when Numbuh 4 interrupts the play, the war that follows between t...
Numbuhs 1, 2 and 5 all go off to China after Numbuh 4 falsely alerts them of trouble there. He then watches TV in their absence, but Numbuh 3 doesn't ...
The powerful Dodgeball Wizard believes that adults are better at playing dodgeball than kids, so when he learns of "the one called Beetles," a kid who...
Numbuh 1 is sent to retrieve an important code from Rainbow Monkey Island, but after a run-in with the Delightful Children From Down the Lane, he is l...
While in the bath, Tommy is controlled by a cleanliness-fearing sea captain.
When the Kids Next Door discover a plan to ruin Christmas, they must team up with Elfa Strike to save the day.
Numbuh 5 must team up with Stickybeard to save Heinrich Von Marzipan from a crew of skeletal licorice pirates.
Numbuh 3 has second thoughts about sending her old Rainbow Monkey to a retirement home.
Numbuh 362 becomes frustrated with all the work involved with being Supreme Leader of the Kids Next Door, so she decides to give up her position. But ...
When a kid-friendly senator receives a funding of approximately eleventy-billion dollars, he uses it to build an army of Safety-Bots, to make the worl...
When Numbuh 1 is taken to England, someone gives him a book, resulting in Numbuh 1 getting followed by 3 kids.
When salad oil is discovered in the school playground, Numbuh 1 must find a way to save recess, while still keeping a promise to Lizzie.
While the team is off on their recess-rescuing mission, the hamsters are attacked and captured by the Sinister Felines from Atop the Litterbox, but en...
Numbuh 1 wakes up to discover that he is the president of the United States in an alternate dimension, who is about to sign the Bill of No Rights for ...
Amerigo Vespinaccio tries to spread spinach throughout the school, and Sector V must stop him.
Numbuh 2 attempts to deliver the fourth grade president's message.
Numbuh 20 000 and his Squid Squad work with Sector V to destroy the bridge leading into Le Sissie a store in the mall that sells horrible back-to-sch...
Numbuhs 2, 3, and 6 are tricked and must get a truckload of soda to a girl's birthday party and keep Mr. Fizz and Lieutenant Seltzer from getting the ...
Tommy loves Numbuh 2's cruddy, old tricycle but gets laughed at when the other kids see him riding it. Using his 2x4 technology expertise, Tommy rebui...
When Gallagher Elementary students are being arrested by the School Safety Patrol for crimes they are envisioned to commit, including detective Numbuh...
With Father away at Saratoga Springs for the day on orders from his doctor, the DCFDTL invite Cree and the teenagers to their mansion to plan a new st...
Numbuh 5 goes into the Haunted Doghouse to get Sector V's cinder block back, but later comes out with different results.
Numbuhs 3 and 4 are launched into space to break the "Ridiculous" space barrier, but blackout in mid-flight and wake up on a world ruled by anthropomo...
This episode illustrates a day at the annual kids' 2x4 tech science fair. Numbuh 2 is present, shoving his "I Can't Believe It's Not Booger" product d...
Continues from Operation: S.C.I.E.N.C.E.. When a mysterious enemy starts kidnapping KND scientists, Sector V sends Numbuh 2 into hiding at an Amish se...
Lizzie has always had to compete with the Kids Next Door for Nigel's attention, and she thinks Nigel has found a new girlfriend.
Heinrich uses a ritual involving sacred golden caramels to take away the qualities the Sector V operatives value the most (Numbuh 1's leadership, Numb...
Adults send Numbuh 4's family to the Moon to colonize it. However, Sector V diverts the colony to Hollywood, where they stage a fake colonization, tri...
The KND and the Teens are about to sign the "You don't mess with us-We don't mess with you" Kid-Teen treaty. It is going to be signed by Numbuh 8000 (...
Kenny and his pet chimpanzee are asked by a mad scientist to watch over his collection of samples of deadly diseases.
When the villainous Mr. Wink and Mr. Fibb extend the adult swimtime in the neighbourhood pool the Kids Next Door are sent a red alert to stop them. Nu...
The enemies of the Kids Next Door, led by Father, join forces to resurrect the Ultimate Evil, Grandfather, a tyrant who once ruled the world many year...
The show starts off with a live-action interview of Abigail Lincoln (now Abigail Gilligan) (Numbuh 5) and the rest of Sector V. Even though they are n...
