Big Bad Wolf is the seventeenth episode of the first season of Big Wolf On Campus.
An old boyfriend of Stacey Hanson's shows up in Pleasantville, just as Tommy and Stacey are starting to make things work. Eric 'The Arm'. Tommy feels challenged by him. Tommy and Merton speak an indian chant which brings out Tommy's dark side in the form of an evil twin.
The two Tommies fight each other, leading to the evil twin disappearing when Tommy accepts the dark side of himself.
The episode ends with Stacey dating Eric.