Mysterious purple couches are turning the world's population into mindless zombies. With Peter as a mindless Zombie, Jim enlists the help of boy-genius Grayson to stop this evil plot by Professor Monkey-for-a-Head.

Queen Slug-For-A-Butt tries to enslave mankind by implanting a microchip into Santa Claus' head, brainwashing him into implanting more chips all over the universe. The queen will get a whoopin' coming to her, though, when she learns that Santa is really the Norse god of war.