2 seasons available
Adults raise the drinking age of root beer; the Kids have to save Numbah Four from the Crazy Old Cat Lady.
Count Spankulot tries to join the Kids; Numbuh One uses a date as a reconnaissance mission.
The Kids discover Numbah Five's sister wears a training bra; teens try to flood the town with tapioca.
Numbah Four tries to sneak into an R-rated movie; Numbah Three wants to lead a mission for her birthday.
The gang helps Southern Kids Next Door when they are kidnapped by the Moustache; Numbuh One tries to find a way to stop his dad from playing his sousaphone...badly.
The ghost of a tree-house hamster haunts Three; the team tracks a 13-year-old scheduled for decommissioning.
Operatives try to excuse failure; the gang tries to keep Numbah One under control during a briefing.
A sandcastle king wants Numbah Three to be his queen; the Kids receive information about the adults' coffee drilling operation.
Numbuh One is wrongly accused of being 13-years old and ambushed by a decommissioning squad led by Numbuh 86; with no access to his team or his Treehouse, he must rely on his skills and help.
Stickybeard sniffs out the Kids Next Door's candy depository and attack their Treehouse to steal it. The KND meet Lasso Lass, the last active member of another era's version of the KND: The Cowboy Kids Club!
Numbuh Four accompanies his father to work; the team travels to the Arctic to stop a scientist.
A fly finds it's way into Treehouse headquarters; the team suspects teen-agers of adult training.
Operatives are neutralized by Mega Mom and Destructo Dad. Numbuh Two's little brother does anything to hang out with his brother.
The Kids Next Door try to quietly defend their treehouse from attack while Number One takes a nap; Number Three accidentally takes a mysterious stranger with her to visit Rainbow Monkey Island.