Paul Stanton (Edward Herrmann) has talked his son Billy into being sent off on holiday to California to join his Mother, Sally and her old high school sweetheart Mike who are going into Arizona. Deciding on checking out Death Valley, they've yet to find out that it is currently the new stamping grounds of cowboy serial killer and his equally demented twin (who both have a tendency to tap-dance and belt out good old country ditties). Both have just done away with a teenage couple residing at an abandoned gold mine. Billy, stretching his legs, stumbles across their camper filled with death, missing the carnage he comes across a frog pendant lying on a shag pile. His moment of kleptomania somewhat seals his fate as its owner returns to find his trinket gone and so he takes off after Billy and his family, who wind up seemingly in the safe vicinity of a nearby Wild West novelty town. But for how long?