In common with the previous Simpsons Halloween specials, the program is made up of three self-contained stories; "Hell Toupee", "Terror of Tiny Toon" and "Starship Poopers". In "Hell Toupee", Homer Simpson gets a hair transplant. The hair he receives had belonged to the executed dangerous criminal Snake. At night, Snake's hair takes over Homer's mind to take revenge on the witnesses who saw him commit his final crime. In "Terror of Tiny Toon", Lisa and Bart Simpson's lives are in danger when they find themselves inside a Halloween episode of their favorite violent cartoon show. In "Starship Poopers", it is revealed that the baby girl Maggie is really the daughter of the alien Kang.