In "Operation: S.P.R.O.U.T. (Sickening Produce Removal Operation Ultra Tricky)", Numbuh 4 is horrified when he accidentally eats a brussels sprout at his family dinner table. His teammates rush to his aid, and it is decided that Numbuh 1, Numbuh 2 and Numbuh 5 must go in and retrieve the offending vegetable. In "Operation: H.O.U.N.D. (Homework Obliterated Using Nefarious Dog)", Numbuh 5 is chased on the way to school by a giant, ferocious dog that steals and eats her homework. She is convinced that the dog was the pet of a rival classmate, Valerie, because she saw it coming from her house. But when she, Numbuh 2 and Numbuh 4 go to investigate, they find that Valerie's poodle is far too small and too - well, cute - to have been the dog in question. But if it didn't eat Numbuh 5's homework, then what... or who... did?
—Anonymous