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.
Jackie Coogan
Allan Nixon
Richard Travis
Lyle Talbot
Paula Hill
Robert Knapp
Tandra Quinn
Chris-Pin Martin
Harmon Stevens
Nico Lek
Kelly Drake
John Robert Martin
George Barrows
Dolores Fuller
Mona McKinnon
Sherry Moreland
Katherine Victor
Samuel Wu
Margia Dean
Angelo Rossitto