A young alien falls for a pretty teenage Earth girl and they team up to try to stop the plans of his invading cohorts, who intend to use Earth as a food-breeding ground for giant lobsters from their planet. The invaders, who arrive in a flying saucer, carry deadly ray guns that turn Earth-people into skeletons.
An atomic scientist claims he was abducted by aliens after being injured in a plane crash.
In a post nuclear Earth, survivors are stuck in a valley and have to protect themselves from mutant human beings, and each other in some cases.
Residents of California’s San Fernando Valley are under attack by flying saucers from outer space. The aliens, led by Eros (Dudley Manlove) and his assistant, Tanna (Joanna Lee), intend to conquer the planet by resurrecting corpses in a Hollywood cemetery. The living dead — a cape-wearing ghoul (Bela Lugosi), a vampire (Vampira) and a slow-footed cop (Tor Johnson) who was killed for his nosiness — stalk curious humans who wander into the cemetery looking for evidence of the UFOs.