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.

George N. Thompson
as Corporal Roger Corman

Brian Klapstein
as Captain Murdoch

Jeanette Baker
as Barbara Peters

Mark Isaacson
as John Stryker

Gordon Mitchell
as General Murchison

Tim Jahn
as Attacker

Dominic Fantazzi
as Commander Lyle Davidson

Brandon Baca
as The Hunter

Kelsa Shilanski
as Debbie Hill

Wayne Horine
as Orderly