Fred’s hero, adventurer Dr. Rick Spartan, begins teaching a biology class at Crystal Cove. Fred introduces himself and the gang, and Spartan invites the gang for dinner. At dinner, Spartan shows the gang his latest find–a cursed shrunken head. The headless body then attacks, threatening to hunt Spartan forever. After surviving a brutal attack, Spartan decides to give up adventuring. The gang suspects Spartan’s partner Cachinga, but the Headless Horror attacks again. The gang traps the monster, revealing it to be Spartan’s wife Marion, who wanted him to stop adventuring.
