The first spaceship to Mars, presumed lost, is found in space and brought back to Earth by remote control. Only two from an initial crew of four are still alive, but one is unconscious due to an attached alien growth, while the other is traumatized, blocking out all memory of what happened. In hopes to save the unconscious crewman, the amnesiac is interrogated back into remembering. Those in charge thereby learn of the terrible dangers awaiting anyone venturing into the spooky, ruddy stillness of the very alien Martian ecosystem. 一支四人科学小队登陆火星探险，结果遭遇了种种怪物铩羽而归。
