Overview
A test pilot is missing and a search party is sent out in the jungles of Mexico; however, while searching they uncover a monster in the jungle who became this way due to a dose of radioactivity.
Cast
- James Craig as Russ Bradford
- Gloria Talbott as Susan Winter
- Lon Chaney Jr. as Martin 'Marty' Melville
- Tom Drake as Lee Brand
- Duncan 'Dean' Parkin as The Cyclops
- Vicente Padula as The Governor
- Marlene Kloss as The Salesgirl
- Manuel López as The Policeman