A spaceship is sent to Mars after an alien distress signal is picked up. They find one survivor, but when a crew member is found drained of blood it's evident they have rescued a bloodsucking monster. Uses footage from Encounter in Space (1963).
as Alien Queen
as Dr. Farraday
as Allan Brenner
as Laura James
as Paul Grant
as Anders Brockman
as Tony Barrata
as Control Panel
as Farraday's Aide
as Spaceship Crew Member
