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?moreless
Operation: D.O.G.F.I.G.H.T.: 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, Hoagie 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?!
Operation T.R.I.P.: 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 Beneath 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 their incompetence and her natural good luck impair them at every turn! What will be the outcome of this stealthy struggle in the Land of the Rising Sun?!
Operation: B.E.A.C.H. 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 Knights 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?
Operation: U.N.D.E.R.C.O.V.E.R.: 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 cutting off the Delightful Children's supply of coffee, the source of their evil power. Thus, the KND and Lenny travel to an offshore coffee drilling rig to make a pre-emptive strike... but could this all be, as it most likely is, a double cross? And if so, who is double-crossing who?
Operation: T.H.E.-S.H.O.G.U.N.: 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 valuable than gold. Can 2 and 4 defeat this insane samurai and escape his deadly dairy dojo?!
Operation: C.O.L.L.E.G.E.: Numbuh 1 hears word that a ten-year-old prodigy 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 to ice cream headaches - and 1 fits the bill. 1 is eager to help, but when his well meaning friends try to launch a rescue mission, the Professor goes from mad to plain angry! Can they escape this chaotic collegic catastrophe?!
Operation: S.U.P.P.O.R.T.: 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 suspicious 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?
Operation T.A.P.I.O.C.A.: 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 sure...
Operation: S.P.A.N.K.: 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?
Operation: D.A.T.E.: The Delightful Children From Down the Lane are holding a social, and the KND are invited! Smelling a rat, Numbuh 1 and the team decide to go for a reconnaissance 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 Numbuh 1 prevail? Will his relationship with Lizzie survive?!
Operation: C.A.T.S.: Numbuh 4 accidentally destroys Numbuh 3's favorite toy, and then lands himself in the clutches of the Creepy Old Cat Lady and her billions of cats! His fellow operatives embark on a rescue mission, but Numbuh 3 refuses to go. But will she eventually forgive Numbuh 4 in time to save him?
Operation: P.O.P.: 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 prohibition's leader, Mr. Fizz, has something even more sinister in store. Can the Kids Next Door stop Fizz from bottling up children everywhere?
The frustrated Delightful Children from Down the Lane turn to their Father for help destroying the KND, who are almost defeated after they subsequent successful attack. With their leader gone, treehouse destroyed and faith shattered, the KND are forced into a showdown with their most dangerous foe ever.moreless