Ro-Man, an alien robot who greatly resembles a gorilla in a diving helmet, is sent to earth to destroy all human life. Ro-Man falls in love with one of the last six remaining humans, and struggles to understand how his programming can instruct him to kill her while his heart demands that he can't.
The first pilot to leave Earth's atmosphere lands, then vanishes; but something with a craving for blood prowls the countryside...
An Army officer and a hunter engage in a simulated manhunt with one using real bullets in post-Korean War Los Angeles.
