In the futuristic date of 1973, an expedition crashes on Mars. The only survivor is Colonel Carruthers (Marshal Thompson), who is accused of murdering the rest. They send a second expedition to Mars for the purpose of bringing Carruthers back to stand trial. Sounds reasonable.
They collect Carruthers and start their trip back to Earth. There he details his air-tight alibi: the crew was killed by an evil monster from the mist. Nobody believes him. Until members of this crew start disappearing.
When the air lock was open, they apparently picked up the most horrible of terrors: man in a rubber costume. He hides in the cargo hold using the most advanced of camouflage techniques: duck behind boxes.
Well, it's good to see that in our distant future, women have earned the right to perform such important tasks, like to clean up after the men, pour them coffee, and comfort them after they do battle with the nasty monster. Viva liberation!
Not much of a movie. I vacillated between 2.5 and 3, but in the end I decided to be generous. It was kinda fun. And short.