John Robert Martin

A old west town run by women. All the town's business is controlled by a woman gambler who tries not to succumb to the allure of a handsome and persistent cowboy.

Don Gregor, the son of famous plastic surgeon Dr. Boris Gregor, begins to hang around with young criminal Vic Brady and carry a gun. The pair attempt an armed holdup, and when things start to go wrong Gregor accidentally kills a night watchman. Fearing that Gregor plans to turn himself in, Brady kills him and blackmails Dr. Gregor into giving him a new face.

A mad scientist, Dr. Aranya (Jackie Coogan), has created giant spiders in his Mexican lab in Zarpa Mesa to create a race of superwomen by injecting spiders with human pituitary growth hormones. Women develop miraculous regenerative powers, but men mutate into disfigured dwarves. Spiders grow to human size and intelligence.

Two men search the jungle for a woman who has been captured by a tribe of murderous gorillas. When they finally find her, they must fight off attacks by the gorillas, who are determined to keep her.