A group of young and wild motocross racers venture through the desert and are stranded at an old mining ranch. They soon realize that they are being watched by a group of savage cannibals unknown to the civilized world. The film is full of flashbacks to the original film; even the dog has a flashback.

On the way to California, a family has the misfortune to have their car break down in an area closed to the public, and inhabited by violent savages ready to attack.