A small group of soldiers on a remote dew-line outpost in northern Canada discover that scientific experiments conducted there have created a horrible monster that has been terrorizing the base.

Three astronauts crash land on an Earth-like planet after returning from a 7-year long expedition to Ganymede. The planet however is populated by murderous psychopaths who kill two of the astronauts right away. The third, Roger Corman, flees to the alien countryside where he decides to begin a violent quest to find out the truth behind his mission.