After Joe builds a fancy home theater, Peter attempts to one-up him by building a multiplex in his own backyard. While digging, he unearths an ancient Native American burial ground and desecrates the skull of a chief. This triggers a series of paranormal events parodying the 1982 film Poltergeist . Key Plot Points
The Griffins hire a spiritual medium (Bruce) who reveals the entrance to the spirit world is the closet, but the exit is Meg’s butt . [S4E26] Petergeist
Herbert the Pervert fights an "evil tree" in a parody of Gandalf’s battle with the Balrog. After Joe builds a fancy home theater, Peter
Lois enters the spirit world to save Stewie. Upon their return, the spirits destroy the house, forcing the family into a motel. the spirits destroy the house