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).)

Top Cast

Florence MarlyAlien Queen

Basil RathboneDr. Farraday

John SaxonAllan Brenner

Judi MeredithLaura James

Dennis HopperPaul Grant

Robert BoonAnders Brockman

Don EitnerTony Barrata

Virgil FryeControl Panel