In this send-up of the B movies of the 1950s, Dr. Paul Armstrong (Larry Blamire) and his wife, Betty (Fay Masterson), head to the mountains in search of a meteor containing the rare element atmosphereum. Nearby, sinister Dr. Roger Fleming (Brian Howe) looks for Cadavra Cave, home to rumors of a legendary Lost Skeleton. Both witness the arrival of a disabled alien spaceship and its crew (Andrew Parks and Susan McConnell), who discover they too need atmosphereum to power their ship. Dr. Fleming also requires atmosphereum to bring to life the dreaded Lost Skeleton of Cadavra, which he finds in the cave. Now everyone's after the atmosphereum and the Armstrongs have their hands full, with a mutant, an evil scientist, and a power-mad Skeleton who wants to rule the world.