Homer sells his soul; Vampire Burns invites the Simpsons for dinner; Bart sees a gremlin damaging his school bus.

After a reckless Squishee bender with Milhouse, Bart wakes to the shocking realization that he joined the Junior Campers. Lured by pocketknives and knot-tying lessons, Bart assimilates into the group but then must face the father-son rafting trip.

Stuck in his room with a broken leg, Bart hears a high-pitched scream. When he looks through his telescope, he sees a guilty Ned Flanders burying the evidence.

Lack of beer and cable TV make Homer a crazed killer; the present is altered by a time-traveling Homer; and Principal Skinner turns detention students into food.