Ten teenagers party at an abandoned funeral parlor on Halloween night. When an evil force awakens, demonic spirits keep them from leaving and turn their gathering into a living Hell.

The Ghoulies wreak havoc at an amusement park, disposing of those who mistake them for mere fairground attractions.

A replacement co-pilot joins a B-17 bomber crew in North Africa. He soon finds himself at odds with the remainder of the crew and has to regain their trust and support.