In a series of interviews with the KND after they're all grown up, the former operatives are temporarily brought out of their decommissioned haze to discuss what happened during their very last mission with Numbuh one - where he disappeared and was never heard from again! It all started with a routine mission to get the Delightful Children's birthday cake, but when a mysterious boy steals it instead, he makes it available to whoever wants it, IF they can solve his 'simple' scavenger hunt first. Soon it's a mad, mad, mad, mad chase around the world as the KND, their friends, and virtually all of their enemies compete to win the yummiest cake ever
Ben Diskin
as Nigel "Numbuh One" Uno / Hoagie Pennywhistle "Numbuh Two" Gilligan Jr. / D.C.F.D.T.L. (Voice)
Lauren Tom
as Kuki "Numbuh Three" Sanban (Voice)
Dee Bradley Baker
as Wallaby "Numbuh Four" Beatles / D.C.F.D.T.L. / Chip / Toiletnator / Mr. Fibb (Voice)
Cree Summer
as Abigail "Numbuh Five" Lincoln / D.C.F.D.T.L. (Voice)
Maurice LaMarche
as Father (Voice)
Ric Stoneback
as Adult Hoagie
Sonnie Brown
as Adult Kuki
Jeff Bennett
as Mr. Boss (Voice)
Jennifer Hale
as Computer / Mrs. Uno / Numbuh 86 / Numbuh 363 (Voice)
Mark Hamill
as Stickybeard (Voice)
Janice Kawaye
as Sonia / Lee (Voice)
Tom Kenny
as Mr. Dink / Knightbrace (Voice)
