Codename: Kids Next Door - Season 4 - Eps 8: Operation C.A.K.E.D.-F.O.U.R.
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 for it. No one is more eager than Numbuh 2, who plans to use his old tube, Betsy, and "farfegtubing". But are the Delightfuls keeping their word about the cake or are they luring the competitors into a trap?
About Codename: Kids Next Door

Title: Codename: Kids Next Door
First Air Date: 2002-12-06
Last Air Date: 2007-11-23
Status: Ended
Rating: 8.2/10 (from 731 votes)
Language: EN
Seasons: 7
Total Episodes: 139
Network: Cartoon Network
Genres: Animation, Action & Adventure, Comedy, Sci-Fi & Fantasy, Kids, Family
Production Companies: Curious Pictures, Cartoon Network Studios
Synopsis
Taking numbers instead of names, five extraordinary 10-year-olds form a covert team called the Kids Next Door with one dedicated mission: to free all children from the tyrannical rule of adults.
Cast

Ben Diskin
Numbuh 1 / Numbuh 2 (voice)

Lauren Tom
Numbuh 3 (voice)

Dee Bradley Baker
Numbuh 4 (voice)

Cree Summer
Numbuh 5 (voice)