Tiffany Donovan vs. the Cookie Elves of Destruction (Devils' Pass)

Tiffany Donovan needs cookies for the annual Devils' Pass Middle School Cookie Sale, though she is a little suspicious of the strange woman at the bakery offering them free; still, everybody seems to love the cookies--but when everyone who ate the cookies starts behaving like sleep-walking robots Tiffany remembers that in Devils' Pass there is no such thing as a free cookie.