Episode 1 - The Clowns Here Kill Part 1
Joey wins the Jack in the Box at a carnival game. When he opens it, the Killer Clowns attack the townspeople. The group in Flint's Arcade finds the gear and instructions to cleanse the Jack in the Box.
Episode 2 - The Clowns Here Kill Part 2
The guests must find all three remaining pieces (a spring, a song, and a head) to cleanse the Jack in the Box. JC dies in order to get the new head, thus cleansing the artifact.