An evil scientist implants the brain of a murdered high school student into an animatronic Tyrannosaurus, who later wreaks vengeance on the bullies who killed him, and is reunited with his sweetheart.
Hillary and Bonnie meet one morning by the side of the road. They become fast friends, share their secrets, and, on a rising wave of frenzy, later that afternoon, murder an old woman. They did it, they say later, for fun.
Sam and Dave are living the boring life until they are beckoned to Sam's uncle's Island. When they get there (still not quite sure how that worked) they are compelled by beautiful women and a dastardly enemy of the Island. After accidentally convincing Sam's uncle to sign away rights to his island, they must somehow fix the problem.
