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 years ago when most of the villains were themselves kids. When Grandfather uses his reality-warping powers to reconquer the world and transform every human on the planet into his obedient "Senior Citi-Zombies" slaves who are forced to make Tapioca to refuel Grandfather so he can find and destroy the Book of K.N.D. The Kids Next Door are quickly overrun and transformed. It falls upon Numbuh 1 to locate the KND's only hope for salvation, the legendary hero Numbuh 0. In the process, Numbuh 1 learns some startling revelations about the origins of the KND, his arch-enemies Father and the Delightful Children From Down The Lane, and even his own family history.
When Billy's dad leaves to buy underwear, Billy wears his dad's "lucky pants", despite being told not to. Billy accidentally gets Grim's scythe stuck in the pants, and he tries to get help fixing them before his dad gets home. He calls "Ed, Edd, n Eddy's Pesky Problem Fixers", but Billy doesn't have any money, so Eddy tells him to call the Kids Next Door since "they're cheap." The KND soon arrive (Billy is confused by this, stating that he tried to call the Power Puff Girls"), and they find they need 2x4 Technology, so Numbuh 1 dresses up as Billy to stall Billy's dad, while the rest of Sector V take Billy to the KND Deep Sea Base to fix the pants. Mandy comes to Billy's house, and knows that Numbuh 1 is not Billy. Mandy captures Numbuh 1, and tortures him until Numbuh 1 tells Mandy everything about the KND. Meanwhile, the rest of Sector V are flying Billy to the Deep Sea Base, and they get an urgent message that the Delightful Children from Down the Lane are using a "delightfulization machine" to make more children into their delightful slaves. Sector V reluctantly takes Billy on the mission, where he mistakes the delightful machine for a bathroom, fusing him, the lucky pants, Grim's scythe and the Delightful Children (who only ran inside the machine to pull Billy out) into a being called the "Delightful Reaper". Meanwhile, Grim comes to Billy's house, and mistakes Numbuh 1 for Billy. In a sudden show of pain, Grim senses that his scythe has been fused with evil and strangely delightful children, and Numbuh 1 realizes that he is talking about the Delightful Children from Down the Lane. The Delightful Reaper begins fusing kids into it, including Numbuh 2. Sector V returns to the Moonbase, where they find Mandy disguised as Numbuh 1. Only Numbuh 5 and later, Numbuh 362 knew that she's an impostor, but since nobody else does, Mandy convinces everyone that Numbuh 5 is losing her mind. Soon Mandy becomes ruler of the KND, renaming it the MND (Mandy New Dicta
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 now adults, they are told by an unnamed, unseen interviewer that the effects of decommissioning have been temporarily reversed so they could be interviewed on their final mission.
The Kids Next Door attempts to stop a birthday party for their arch-enemies, the Delightful Children From Down The Lane. But a surprise, and a monstrous guest stands between them and the greatest birthday cake ever.
A little kid named Kenny takes Chimpy to Professor XXXL's lab. While the Professor suspects Kenny will knock open the mysterious disease containers, it is actually Chimpy who causes the havoc.
When the villainous Mr. Wink and Mr. Fibb extend the adult swimtime to extreme lengths at the neighborhood pool, the Kids Next Door plan to strike back with a vengeance.
Adults are running around with ice cream trucks. But dont give any ice cream to the kids. So the Kids Next Door bust them up and get the password for the ice cream headquarters, then are soon confronted with the delightful children from down the lane...
Numbuh 1 has to go to a park with his parents one day and leaves the other 4 Kids Next Door to watch the place. Soon the Kids Next Door are bombarded with evil dooers including the evil kids. Later on that day after the delightful children from down the lane are told to go back home Numbuh 5 accidently suggests making a huge cannon. Numbuh 4 claims the roll of the leader then after alot of attempts on making the other kids make a cannon, they finally do it...
When Numbah 3 releases the hamsters powering the treehouse, Grandma Stuffums attacks! Will the Kids Next Door be able to fend off this foody fiend?
When the KND get attacked by Knightbrace on the way to the candy store, they must use the evil dentist's own abilities against him!
Stickybeard and his candy-stealing pirates invade the Kids' tree fort, stealing all their candy... including Numbuh 5's secret stash, and Numbuh 5! Can the rest of the kids recover their teammate and their candy?
The Kids Next Door are on the run from Fibb and Wink (from the pilot ""No P in the OOl""), when they're rescued by Lasso Lass, the only member of the original anti-adult super squad ""The Cowboy Kids' Club"" who's grown old, but not grown up. She offers to help the Kids recover Fibb and Wink's secret weapon (""The Dome""), but can the kids trust an adult, even one who's still a kid at heart?
When the KND headquarters are flooded by turnips, the gang must travel to the source where they meet an evil monster turnip who has big plans!
When Numbuh 2 challenges mini golf champ Rupert Puttkin to a match but soon realizes Rupert has another plan in his golfbag!
Numbuh 4 reluctantly accompanies his dad to work uncovers a scheme including Rainbow Monkeys and screaming girls plus a one way trip to Pluto!
The Kids Next Door journey to to the artic and hope to uncover a weather control device from a mad scientist who wants to put an end to snowy days.
Numbuh 5 goes on a secret mission to find nachos at the delightful children from down the lane's house, when her hat gets lost. She quickly recovers it and hurriedly runs to the KND headquarters, she then starts itching her head alot and lice comes out of her hat! But it's not really her hat her other hat is with the delightful children from down the lane. The Lice start to take over. The only way to get rid of them is with nacho cheese.
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 days as KND could be numbered.
A fly finds it's way into the KND headquarters and gets five different reactions form Numbah 1, 2, 3, 4 and 5.
All the teenagers in the KND's hommetown have formed a group called The Point and Numbah 1 suspects that they are helping the parents. So, the KND stage a raid at the Point's secret headquarters and are horrified at what the see.
The kids are chosen to star in a show on a 'kid-centric' network.
Can Numbuh 1 stop a camp counselor without the help of 2 and 3? Probably not...
Numbuh 2's little brother will do anything to hang out with his big brother, even if that means forming an alliance with the Common Cold.
When operatives from the KND international organization are neutralized by Mega Mom and Destructo Dad, The KND team up with the legendary operative Numbuh 274 to "" ground the powerful parental enemies.
Operation P.I.A.N.O.: Numbah 4 discovers a shipment of type P kid torcher devices, thats right pianos! On the mission he is impatient to destroy the pianos hurt badly. Then an ambitious hamster takes his place temporarily and makes a very effective plan to destroy the final piano until a jelous Numbah 4 ruins it.
The kids of the town are captured by an evil zoologist who tags them and puts them in cages. Now if they want to escape the need to work along with the Delightful Children!
What a time for every single villain, they ever faced, to invade the tree house -- at night, when Numbuh 5 is trying to keep things quiet for Numbuh 1 to sleep!!!
Numbuh 3 learns that her Rainbow Monkey dolls are based on real creatures and plans on finding them at the Rainbow Monkey Island.
The frustrated Delightful Children from down the lane turn to there Father for help destroying the KND, who are almost defeated. With their leader gone, treehouse destroyed and faith shattered the KND are forced into a showdown with their most dangerous foe ever.
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 his fellow operatives save him? And will Numbuh 3 forgive him in time TO save him?
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 Kids discover the prohibtion's leader, Mr. Fizz, has something even more sinister in store. Can the Kids Next Door stop Fizz from bottling up children everywhere?
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 instead of harm them, and approaches the Kids Next Door with an offer to join them! But when the former Bounty Hunter of Bottoms turns out to be more annoying now than he ever was as a villain, how will the KND get rid of the Pesky Paddler?
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 reconaissance mission - and as the only one without a date, he brings Lizzie along. But when the Delightful Children spring their trap, Lizzie becomes more of a hindrance than ever. Will Numbah 1 prevail? Will his relationship with Lizzie survive?!
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 it slip that teenage sister Cree is wearing a training bra! Ever suspisious of teenagers, Numbuh 1 figures that this odd device must be ""Battle Ready Armor"", and becomes determined to discover the workings behind it. But when the two of them are discovered, can even the Kids Next Door survive the wrath of a humiliated teenager?! And could there be more than meets the eye in this lingerie liason?
On a seemingly routine mission, Numbuh 2 seizes a truckload of disgusting tapioca pudding from a trio of masked teenagers; unfortunatly, when trying to dispose of it, he plants it right in the middle of the treehouse! Now the team is up to their necks trying to clean up the putrid pudding, and the original teen-age owners still want it back! But why? Only Numbuh 2's grandmother knows for su
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 ""Violence: The Movie,"" and after several unsuccessful tries, he makes it in disguised as an adult. But triumph turns to tragedy when he discovers that what promises to be a cool film is actually a front for a meeting for practically every villain that the KND have ever faced! And when his diguise fails, will Numbuh 4 escape this sinister cinema and leave room for a sequel?!
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, Numbuh 1 quickly makes up a simple task for her - to retrieve a Kid's Meal from the new fast food place, the Burger Frenzy. But Numbuh 3 gets more than she bargains for when she discovers that, in this case, ""Kid's Meal"" actually refers to the main ingredient of the meal!
The KND learn about evil moustaches taking over the faces of their fellow KND down south as well as adults.
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.
Everybody knows that ice cream comes in three basic flavors - chocolate, vanilla, and strawberry. But Numbuh 5 knows only too well the legend of how the ancient ice cream monks created a FOURTH basic flavor, and hid it away in a hidden temple, where only an ice cream lover with the purest taste buds could ever taste it. But when the Delightful Children steal the sacred Golden Scoop, Numbuh 5 finds herself dragged to the trap-laden temple, where the evil children force her to penetrate its inner sanctum. Will Numbuh 5 prevail in this frozen frenzy and get a taste of the fabled Fourth Flavor?!
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 teenager and back! Thrown out of the treehouse by his unknowing teamates, he seemingly finds solace when he runs into Numbuh 5's evil sister Cree, and she develops a crush on him! But a bad situation only gets
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 Numbuh 3, who even maintains a vigil at his grave until the weather proves inclement. But unwise is the one who mourns too long for the dead, because during the dark and stormy night, a gang of ghostly hamster arrive, and drag the terrified Three to the hamster afterlife! Now the team must penetrate the very netherworld to rescue their friend, but can even the KND overcome a mob of restless rodents?!
An operative has apparently reached her thirteenth birthday, and is scheduled for decommission; but on route to the moon base, the transport ship carrying her is shanghied and forced to land. When the local KND arrive on the scene, they now must work with Decommission Officer Numbah 86, a boy-hating brat with a bad attitude! And when the fugitive flees to the Delightful Children's mansion, the
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 2 reveals that he's brought his own, the source of the problem is revealed, when the operatives are kidnapped by cheese headed ninja, and then dragged before the Cheese Shogun, a mad martial artist who holds cheese to be more valueable than gold. Can 2 and 4 defeat this insane samurai and escape his deadly dairy dojo?!
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 brain. With the rest of the team refusing to give up their day off, 1 travels across the Pond himself - only to find that the report was a ruse by the misunderstood mad scientist Professor Triple Extra-Large! The snow-cone expert has come close to perfecting his masterpiece, and now needs a test subject who is immune
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, each operative's version of the story is... exaggerated to say the least. Can their superiors find any truth in their speculative snafu?
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. White! Unfortunately, his attacks make the team think that their leader has gone loco! Can Numbah One survive the assault of this unruly underwear? And is there more to this pair of beastly briefs than meets the eye?
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 unwilling guests have so much as a taste. Like clockwork, the KND appear, but the crafty miscreants escape with the pastry. Hot on their heels, Numbuh 1 finds that his foes have sunk to the lowest form of cruelty, when he finds that one of the decoys that they have hired for their getaway is his own girlfriend Lizzie! Finally cornering the not-so-Delightful Children at a huge arena, the team has them cornered - until they unleash their most twisted trap to date: bringing the huge confection into a carnivorous creature! Can the Kids Next Door defeat this demonic dessert??!!
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 prison transport ship; and thanks to Moshi, they crash into it.
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 Kinights of the Round Towel, who drag her before King Sandy, a miniature monarch who quickly falls in love with her! Naturally, the concerned Numbuhs 4 with Numbuhs 2 and 5 confronting the beachcombing brat in his enormous sandcastle... but they are soon overwhelmed. Can the KND topple this tiny tyrant before high tide?
The Delightful Children have the team right where they want them (again), when suddenly, the helmet headed member (his name revealed as Lenny) pushes the wrong button on their vehicle, ruining the villains' plans. The KND start to head home, when they are called to the Moon Base, where they meet with Numbuh 274... and Lenny himself! The Delightful Child claims that he is the reason that his siblings plans always fail, and that he intends to help the KND organization by
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 mysterious child pilot with a 2X4 plane of his own. 2 seeks revenge, but the pilot is untouchable, and manages to shoot him down out of every aircraft in the team's arsenal! Considering giving up, piloting, Hogie finally finds a way to defeat the pilot - only to discover that his supplier has been fooling them both into fighting each other in a plot to destroy every chili dog in town! Can the dueling dogfaces prevent this mystery meat massacre?!
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, the Interesting Twins From Beneth the Mountain, to trail Kuki and find the location of the Japanese agents' hideaway so an attack can be made. But when the two young spies trail 3, a combination of thei
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, his teammates are taken to be decommissioned, so he has to enlist the help of Numbuh 2's little brother Tommy to try and save them! Unfortunatly, he is too late, but can he still save the Moon Base from a fiery demise?
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 school is being run by the evil child Madam Margie, a girl who is getting high-tech aid from none other than her future self! Madam Margie's abominable plan is to create a twisted utopia where girls rule the world, using a demonic weapon called the girlifying ray that can turn anything feminine! The team seeming doesn't stand a chance - until they recieve aid from a strange source - Numbuh 4's OWN future self! Now the team must defeat this fiendish femme fatale and save the future, lest inter-gender relations between boys and girls perish forever!
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 team flees in their M.E.G.A.R.A.G.E aircraft, but Stickbeard and his band of buccaneers do not give up pursuit! When their craft is shot down by the Sweet Revenge, they land in the worst of places - in the middle of the ocean, in a disgusting sargasso of asparagus! Stranded, lost, with no edible food, a bad situation gets much worse when they are found by a great white aspargus monster! And when the vile vegetable seeks to make them its prey, all hope seems lost. Can their be any escape from this savage sprout?!
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 Nigel a break, Lizzie tricks the rest of the team into thinking Nigel put him in charge, and assumes the role as leader. But Lizzie i
The evil Chester is developing his Happy Headband, a strange device he plans to sell to parents to keep kids ""out of their hair."" Numbuh 1 breaks into his lab and steals it, but when escaping on his G.A.R.G.O.C.Y.C.L.E., Chester shoots him down. The operative lands on a strange island which seems to be a children's utopia - lakes are made of soda, candy grows from trees, you can have birthday cake for dinner, and best of all, no adults! But soon, Numbuh 1 r
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 to school, the bus is attacked by kids dressed by cowboys packing chewing-gun loaded six-shooters, demanding the students' spelling homework! Now Numbuh 4 pursues the bandits outside, while Numbuh 5 engages them on the bus itself. Can they save the day before first bell? And who is the brains behind these delinquent desperadoes?!
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 school. Alerted by Numbuh 5, the team follows them, and find themselves in an ancient school, laden with deadly booby traps. Avoiding them all, the team finds Leona, strangely aged to an old woman, who leads them to the mythical Fountain of Youth! The KND are amazed at the prospect of remaining ten years old forever, but the Delightful Children desire nothing less than to destroy the Fountain, claiming that the goal of all children should be to grow up. Can the Kids Next door save the supernatural spring? And what strange secret is ""Leaky"" Leona hiding?
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 - until a crab swipes his swim trunks! After suffering a great amount of public embarrassment, 1 makes his way back to the Treehouse... and minutes later, walks out of his room to tell his terrified team that he's resigning from the Kids Next Door! After he leaves, the purpose becomes quite clear... an envelope is found in his room from the Delightful Children, with a picture of his tush and a note saying ""Leave your team behind or we'll put your behind in the school yearbook."" Now Numbuh 1 is heading for Delightful Manor, where the evil peeping toms desire to make him one of them! Can the team save their leader from the sadistic shutterbugs?!
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 to put on a little make up.
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 pink-eye! When Numbuh 86 becomes the latest victim and he gets no help from Joe the hall monitor (his old partner before he joined the KND), 2 does some of his own deductive work - until Joe attacks him. When he confronts the crooked monitor, Joe himself is attacked, and 2's investigations lead him to the school nurse - who appears to be using the students' illness to make the topping for crumb cake! Can Numbuh 2 close the case on this crummy cake caper?!
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 ruined when King Sandy and his knights attack! The insane sovereign has never given up in his quest to marry Numbuh 3, and he threatens to destroy the Rainbow Monkeys unless Kuki agre
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 fantastic cake! But when the plan to egg the Delightfuls to submission goes afowl, the Kids must decide whether the cake is really worth it.
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 is the Count the real intruder? Or is another spank-happy vampire in their midsts?
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 Monkey with a garganturn, montstrous Rainbow Monkey Kong.
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 for the powerful, mystical candy.
Trivial Rival Instigates Candy Krazy Yearning
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.
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, and it's up to Sector V to make sure he is safe, especially Numbuh 3.
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 digested.
Numbuh 5 takes on a vicious dog who is always eating her homework.
The Temple of Doom, of the KND parodies. Abigail and Hogie venture deep into the Jungle Gym to recover Mr. Fluffleupagus, the second grade mascot bunny, & come across Heinrich Von Marzipan who has a sticky plot in store.
In an attempt to capture the KND's Treehouse, the Adult villains learn that there is no such thing as a "foolproof" plan when the fool you're dealing with is the Toilenator!
Grandma Stuffum returns as the cafeteria lady with some sinister recipes.
A dinner with Numbuh 2's family turns sour when Numbuh 3's Sigh & Care Rainbow Monkey is found with a fork in it's back, it's up to Hoagie to find this monkey murderer.
Numbuh 4 tries to protect chicken nugget mines from the DCFDTL.
The KND try to protect the Macaroni Museum of Art from being ransacked, with the worst KND operative ever, Numbuh 13, on their side.
Prevent Opposite Operative's Larceny: Numbuh 4's new pool contains a portal that leads into a "negative" equivalent of the KND's world, where children obey evil dictator Negative Numbuh 4 and work for adults. A parody of Star Trek's "Mirror, Mirror".
Children's Annual Kompetition Exposes Devilishly – Fiendish Operation Up River: When the Delightful Children promise their birthday cake to the winner of the Tubathon, everyone is raring to go, especially Numbuh 2. With his old tube Betsy, and his "Farfegtubing", will Numbuh 2's dreams come true? Or do the Delightful Children have other plans?
Sweetheart's Involvement Transforms The Evening's Reality. Cree Lincoln becomes the Gilligan bros.'s new babysitter. A parody of Little Nemo: Adventures in Slumberland.
Stuff Abducted Turns Up Nowhere The KND try to stop a mysterious being from collecting all the Rainbow Monkeys in the world-- including Numbuh 3's beloved toys. A parody of Star Trek: The Motion Picture.
Numbuh 5 tries to stop a chocolate monster from destroying her friends.
Numbuh 4 must choose between his job as a KND operative or be a bully fighter.
Lizzie feels that Nigel works too much during lunch, so she forces him to have lunch with her, but he can't work. Meanwhile, a group of lunch thieves and their leader Robin Food break into the cafeteria and start stealing everybody's lunches, including Lizzie and Numbuh 1's.
The KND have run out of Rainbow Munchies, their favorite cereal, so they send out tennis-ball probes to find a box. They find it in Aisle Number 60-teen at the Supervillains Supermarket & Deli, but it is the last one the store has, and it's as popular with the bad guys as it is with the KND!
Numbuh 1 battles a group of snake ties with an adult against them.
The KND try to rescue a boy from a monster in the closet.
Jimmy McGarfield (the fourth-grade president) forces other kids back into school on a first snow day for a special assembly after Numbuh One is too sick to play. A parody of Star Wars Episode V: The Empire Strikes Back and the buswalkers of The War of the Worlds.What's worse than Numbuh 1 being sick on the first snow day of the year? Why, the evil Fourth Grade President Jimmy spoiling everything, of course! The nasty Class President wants everyone back at school for a special assembly, especially for selfish reasons. When the other 4 try to stop Jimmy by rallying the kids against him, their attempts are unsuccessful and they are immediately captured. When Jimmy tries to crown Lizzie his queen with a Girlfriend/Boyfriend Helmet, Numbuh 1 must defeat Jimmy and free her despite his cold. Anna eventually frees the KND and helps Numbuh 1 infiltrate the school. At the start of the assembly, the final fight began. As the KND thrash President Jimmy's Hall Monitors, Numbuh 1 and Jimmy face off with rulers and brooms (parody of light sabers) but Numbuh 1 is knocked down by Jimmy. As Jimmy tries to finish him off, Nigel uses the thermos containing Lizzie's disgusting soup, which she gave him earlier, as a shield. The thermos breaks and the soup drops to Lizzie where the girlfriend helmet is broken due to the soup. The battle is over and Commandos sent by KND Global Command arrive to apprehend Jimmy and Anna. As Jimmy is being apprehended, Anna reveals her love for Jimmy. Numbuh 4 is disgusted by this and when he says that he will never act "lovey-dovey" with anybody, Numbuh 3 pushes him onto the ground and walks away angry
Maurice, a member of the Kids Next Door is de-commissioned. Numbuh 5 is saddened by it, and suggests that they monitor Maurice to make sure the teenagers don’t recruit him.The episode starts when a group of Teens break in to ten year old Numbuh 9's bedroom. Thinking that he is asleep, they try to fire their 'Pox Gun' at him. Suddenly, Numbuh 9 leaps up and yells for the rest of his team, the old Sector V, and they bravely fight off the Teens.
Numbuh 3 stars in a romantic musical as the lead girl. But when Numbuh 4 interrupts the play, it becomes a real war on stage between the DCFDTL and the KND.
Numbuh 4 tries to battle it out with an evil adult in his couch.
Numbuh 4 tries to battle against the Dodgeball Wizard for his rank.
Numbuh 1 and Sector V are on Rainbow Monkey Island trying to take "The Code" from the Delightful Children.
The DCFDTL become the new 4th-grade class president and their first act is the "cleanse the school of troublemakers," and they send Numbuh 1 to detention (which is more like a prison). Numbuh 1's got one chance to save himself in court which blows as the DCFDTL are judges and find him guilty in less than a few seconds. The lawyer for Numbuh 1, a 5th-grade operative called "Numbuh $1.50 an Hour," is dumbfounded and soon, a battle erupts in the court room. Numbuh 1 is locked in permanent detention similar to a prison with the Six Gum Gang as guards. Numbuh 1 suspects the DCFDTL rigged the polls, which they did. The campaign manager, Wilson Woodrow, confirms this information and with the help of Numbuh 4 and 5, breaks free with a stretchy gum substance. Meanwhile, the evil DCFDTL usurp power over the grades and become the leaders of all the grades. The DCFDTL have a conversation with Chad Dickson and it is discovered that the DCFDTL have made a deal with Hendry Middle School. The DCFDTL want to go to eighth grade so they make a deal with Chad that they'll use the kids as slaves for the teens and the DCFDTL would go to eighth grade.
Tommy refuses to take a bath, until he goes down the drain (literally)! He meets Captain Jimmy, a parody of Captain Kirk in Star Trek, who is the high-strung leader of the crew of a ship called the S.S. Stinkypants. Tommy gets inevitably involved in a battle with Moby Duck, which ends with the crew hiding from the giant bird in bubble fog. The team attacks Moby Duck after hearing an inspired speech by Tommy, but the plan goes overboard and Tommy and Captain Dirt learns why it's usually a good idea to listen to your parents!
Numbuhs 1-4 are on a mission to save the babies from being transformed into adults at the hospital. After they return to the treehouse, the try to care for the babies, with little success. Numbuh 5 then comes in and yells at them for taking the babies, saying they were born there. She then asked Numbuh 1 if he even knows where babies come from, he replies "Of course I do, they come from baby eggs," Numbuh 5 then attempts to tell them were babies come from, but the babies start crying. Numbuh 1 blames Numbuh 5 and she leaves.
Numbuh 2 and Numbuh 4 visit Bully Island, a bully habitat owned by Jerry Rassic (an obvious parody of Jurassic Park). Numbuh 2 is interested in the scientific aspect of it, while Numbuh 4 is only in it to see the different types of bullies on the island. After seeing a 'teasing time' (similar to feeding time, but instead kid crash dummies are set on swings and Spitballasaurises come and shot spitballs at them), Numbuh 2 asks Jerry anxiously if he's ever worried about his own safety, being surrounded by bullies all the time. Jerry replies that Bully Island is perfectly safe, and the bullies are in cages that keep them away from him and his sister Eliza, who also lives on the island.
Numbuh 4 shakes the bowl that contains Numbuh 3's pet fish, Mr. Fishy, and kills him by accident. When Numbuh 3 sees her fish dead, she assumes he's just sleeping. The team decides that Numbuhs 2 and 4 should dump the fish while 1 and 5 try to win a new one from a fair, all without Numbuh 3's knowledge of the plan. After they leave, Numbuh 3 comes to check on Mr. Fishy and thinks that someone stole him when she finds him missing.
Wallabee Beetles is charged with protecting his mom's prized/priceless koala bear vase, or he'll have to go to Ballroom Dancing School for ballroom dancing lessons. This becomes increasingly hard as the vase is stolen. He follows the robber, which takes him to a base ball stadium and used for a baseball-like game called "Vaseball", where kids use glass and pottery as the balls. Numbuh 4 thinks he must play, and turns out to be very good. But then, the pitcher throws the vase he was supposed to protect. He tries to get away with the vase, only to find himself in a room of bullies. In the office, Wallabee uncovers an insidious plot by his old friend turned enemy Ernest (the commissioner of Vaseball) and his band of bullies, who plan to rat the kids out for their misbehavior, so they can get the kids grounded that way no one can tattle on them as they vandalize every house in the neighborhood. He accidentally knocks over a bookshelf -- "Uhh... Does that count as a home run?" He gets away, only to find himself in a match to the death with Ernest. They duel with plates, vases, and all sorts of breakable china. The only thing they don't destroy is the vase Wallabee is supposed to protect. Finally, he knocks a bookcase on Ernest, knocking him out cold. He saves the vase, but the other bullies have already carried out their plan. Every kid (including Ernest) is grounded except for Wallabee. "He will always live in the hearts of kids who love to break things." As the screen goes black, we can hear the vase finally breaking and his mother angrily screaming "WALLABEE!". It's unknown if she follows through with her earlier threat.
Numbuh 1 goes to the doctor to get moosebump shots, and the doctor turns out to be Chester who turns him into a moose. Chester then chases him around his jungle office using various weapons to shoot shots at him including a cross bow and a rifle until he finally hits Numbuh 1. Chester then reveals that he was really creating moosebumps to turn kids into mooses and ground up their antlers to make moosicles, which are ice creams with mooses' antlers coming out of them. It is then revealed that it was just a pathetic attempt by Numbuh 1 to change his mother's mind about giving him his moosebump shots. It is then revealed that Chester really is the doctor he goes to. The end credits is a moosicle ad.
A Christmas Episode. How the Delightfuls stole Christmas. The story is similar to How the Grinch Stole Christmas, but has many elements from the X-men series. When the Delightful Children From Down The Lane steal Santa's REINDEER machine and frame Sector V for the crime. The DCFDTL plan to use the REINDEER system to get all the presents for themselves while every other kid will get nothing coal! Now, the Sector V team must fight the Elfa Strike team if they are going to clear their names and prevent the DCFDTL from ruining Christmas.
Numbuh 5 tries to save her sister Cree from a contagious disease that KND have made in revenge for creating chicken pox which is revealed to be a giant pimple on Cree's cheek. Cree has unleashed Patient C before leaving the KND Scientific Research SeaBase.
The KND scientists at the Deep-Sea Science Lab capture "Patient C", due to their belief that she has cooties. When Cree lets Patient C out of her containment unit, in Operation: V.I.R.U.S. , as revenge for the KND ruining Cree's date with Numbuh 9, can Sector V recapture the escape without catching "the C.O.O.T.I.E.S."?
The scene opens up with a large barricade in the surrounding desert that's blocking a large amount of traffic. KND personnel who is led by Numbuh 5 guard this barricade as a bus full of senior citizens charges through, crashing through the barricade only to be stopped a moment later by a large net trap. Numbuh 5 deters the bus to retreat, falsely claiming that "denture-eating bears" were seen around the area, which causes the senior citizens to hurriedly retreat. It is then discovered that the Kids Next Door are blocking all ground and air access towards the Grand Canyon, with Numbuh 2 forcing planes to turn around from passing over the area.
Numbuhs 2 and 3 are about to take a plane of hamsters to Jamaica for their annual holiday vacation. Lizzie then arrives at the treehouse, intent on giving Numbuh 1 a pie she had baked for him. Numbuh 2 and 3 inform her that Numbuh 1 is on a secret mission in Sector J (Jamaica), but they inadvertently mention that he is actually on vacation with Numbuh 10, who is the prettiest of all the operatives according to Numbuh 2 and 3. Lizzie becomes furious that Numbuh 1 lied to her and that he may be cheating on her with Numbuh 10. She demands Numbuh 2 and 3 to take her to Sector J so that she can deliver the pie to Numbuh 1 to his face.
The KND revive Numbuh 19th Century in order to learn about an old delicious cake recipe even more delicious than the Delightful Children's cake, that used to be baked annually by the DCFDTL's predecessors: the Annoyingly Cute Triplets Who Lived Upon The Hill. However, this plan lures the KND all the way to the DCFDTL's cake in outer space, which is really a huge space station with the ice cream cake as its outer layer with the power to destroy huge storage facilities, where Father plots to destroy all the ice cream in the universe. This was so that when the DCFDTL eat their ice cream cake, it will be the last ice cream in the universe.
n eccentric child named Bobby is obsessed with the KND, and has great desire to join. After mailing 38 videos to them, he abruptly receives a message on his computer that reads "are u in?". He is then lead to an abandoned KND treehouse, where he is given the decision to continue life as a normal kid, or to face the danger of being a KND operative. After choosing to be an operative, Sector V gives him various missions, but can he handle it?
Numbuh 85 is taken to the KND Hairstyle Headquarters (Sector HH). Numbuh VO5 and his hair doctors try to get his hair back to some form of coolness. It didn't work. Numbuh 1 hides in the room that Numbuhs 83, 84, and 85 are in and informs the trio that the hair doctors were trying to rub dog poop on his head to see if it (his hair) can grow back. Numbuh 1 then notices Numbuh 85's haircut asking "Leaping Lizzies! What did they do to you?!". Numbuh 85 responds that the hair doctors didn't do it, his father did.
The episode starts with Numbuh 2 cracking bad puns during his report on King Arthur and his knights. Later, Numbuh 5 punches Numbuh 2 and he asks what was that for. Numbuh 5 says it's for having her listen to those lame jokes. Numbuh 2 counters with a newspaper column saying he's the four star riot of fourth grade. Numbuh 5 than says the column was written by Numbuh 2 himself. This doesn't effect Numbuh 2 and he asks if he should of given himself more stars.
Once-sweet Mushi Sanban has one thing in mind after Numbuh 2 got her grounded for forking Numbuh 3's Posh-Party Rainbow Monkey Doll- her lust for vengeance. She plans his comeuppance by digging the Rainbow Monkey from its burial site at Plush Meadows Stuffed Animal Cemetery, and transferring Count Spankulot's powers into her Spankenstine Monster. Meanwhile, Numbuh 2 faces the monster at the local grocery store while getting chocolate sauce. After defeating the Spankenstine Monster, Numbuh 2 returns to the house to confront Mushi, however Numbhuh 2 is out matched by Mushi's Crayon base powers. However, Count Spankulot sucks out the stolen powers in the Rainbow Monkey doll to gain his powers back and unleshes a spanking wrath for transferring his powers to stuffed animals. Count Spankulot then joins the Gilligans and the Sanbans for dessert, and Numbuh 2 then sneaks a sundae to Mushi, only to discover her riding away with King Sandy.
Before the theme starts, Kani tells his eldest daughter, Kuki, not to touch the thermostat even though the house is unbearably cold. After seeing the thermostat's temperature dropping to colder temperature, Kuki decides to touch the thermostat and make things hotter. The next day, the other Sector V agents are gathered for a meeting. Nigel goes jabbering on about cauliflower being rainbow monkey brains. The rest of Sector V doubted this and, while Nigel jabbers on, Kani comes in and tells the agents about Kuki turning up the thermostat. Nigie leaves Wallabee to guard Kani. The rest of Sector V shows up to Kuki's house which is now transformed into an active volcano and ready to explode. Rachel suggests sending Sector P in Pompeii to turn down the thermostat as they have more experience with volcanoes but Numbuh 1 disapproves of this since Kuki is a member of their sector.
Numbuh 4 sets free Mr. Boss, Count Spankulot, Stickybeard, and Soccer Mom and offers them suspended sentences if they do what he says, which is why he has taken the liberty of poisoning their sodas! In 48 hours, the villains' tonsils will inflate to ginormous blimps until their tonsils pop like balloons. Toiletnator escapes from the Arctic Prison and drinks the soda, forcing Numbuh 4 to include him as well. The only way for the villains to get the antidote it to win a bowling tournament being held at Pinhead Lanes Bowling Alley. The reason why Numbuh 4 wants the villains to win is because he's tired of polishing his dad's trophies.
Heinrich Von Marzipan is kidnapped from the KND Arctic Prison by a ship of black licorice pirates. After the theme song, it shows a different scene where a large group of candy pirates are drinking pure sugar. After Stickybeard defeats a candy pirate at drinking sugar. Stickybeard challenges anybody to face Stickybeard. No one answers but Numbuh 5 is next and challenges Stickybeard to a chugging match to see who can drink a cup of sugar faster. Numbuh 5 wants information about Heinrich's disappearance, which somehow involves black licorice, in return if she wins. Stickybeard is even dared when Numbuh 5 says Stickybeard is "Sugar free". Sticky accepts but loses to Abby. Stickybeard asks for 2 outta 3 but Numbuh 5 declines. So Stickybeard begins telling a tale in song, along with the rest of the candy pirates. The pirates tell the tale of Black John Licorice and his pirate crew who find a island near North Dakota filled with red licorice trees. Black John took all the trees but a terrible misfortune was exposed for him and the pirates. The fate was that the licorice turned black and every night, the pirates would turn into licorice and at dawn and day, they would become a pile of bones. The pirates soon discover from a gypsy fortune-teller that they must plant a licorice seed that she gives them on the island so the licorice would grow again, and the curse would be broken. The pirates do so but while on the island, the dawn rose and they became a pile of bones.
It starts out when Numbuh 3 was a baby, she receiving a purple rainbow monkey called "My First Rainbow Monkey" at birth. The next couple of scenes show Numbuh 3 taking her first steps, learning to ride a bike, and graduating into the Kids Next Door with My First Rainbow Monkey by her side each time. My First Rainbow Monkey also grows a beard throughout these flashbacks.
Every year, the KND choose someone to be "IT" which involves a game of tag to choose the next Supreme Leader, so Numbuh 362 sets up the game after she decides to resign after being tired of the job. But when Numbuh 2 accidentally tags Father, he becomes Supreme Leader. Now, it's up to Numbuh 1 and Numbuh 362 to stop him before he wipes out the entire KND.
When a kid-friendly senator receives a funding of approximately eleven-billion dollars, he uses it to build an army of Safety-bots, to make the world a safe place for children. But the robots grow more and more extreme in their actions, eventually planning to eliminate adults, and cover the Earth in bubble wrap
When Numbuh 1 is taken to England, someone gives him a book, resulting in Numbuh 1 getting followed by 3 kids.
Sector V attempts to sabotage the Villain's Choice Awards.
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 end up battling the Hamsters Next Door.
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 Kids.
Amerigo Vespinaccio tries to spread spinach throughout the school, and it's up to Sector V to 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-school clothes for kids.
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 soda.
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 rebuilds it into the "Best Bike in the Whole World", but the bike turns evil trying to impress Numbuh 2.
When Gallagher Elementary students are being arrested by the School Safety Patrol for crimes they are envisioned to commit, including detective Numbuh 2, it's up to Numbuh 3 to investigate a psychic member of the School Safety Patrol while trying to finish her social studies homework.
With Father away for the day, The DCFDTL invite Cree and the teenagers to their mansion to plan a new strategy against the Kids Next Door, but instead, the teenagers turn it into a wild house party, leaving the DCFDTL to call Sector V for help.
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 black out in mid-flight and wake up on a world ruled by anthropomorphic, talking Rainbow Monkeys.
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 down the judges' throats.
Continues from Operation: S.C.I.E.N.C.E.. Sector V sends Numbuh 2 into hiding at an Amish sector to his extreme dismay.
Lizzie's always had to compete with the Kids Next Door for Nigel's attention, and she thinks Nigel has found a new girlfriend. but now it seems she has a rival for his love!
Heinrich uses a ritual involving sacred golden caramels to take away the qualities the Sector V operatives value the most. (Numbuh 1's leadership, Numbuh 2's intellect, Numbuh 3's giddiness, Numbuh 4's toughness, and Numbuh 5's Coolness) Numbuh 5 eventually teaches Heinrich that he needs to share his candy to revert to his original form, She is then seen leaving with a young Blonde girl.
Adults send Numbuh 4's family to the Moon to colonize it. But Sector V diverts the colony to Hollywood, where they stage a fake colonization, tricking the Beatles family and the adults at mission control to prevent them from discovering the KND Moonbase.
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 (KND and the Teens leader), but it turns out to be a trap for the KND, making Numbuhs 1 and 274 set out to prevent it after being falsely convicted by the KND.