Soviet scientist's plans to defect are ruined when he is ambushed by KGB agents. The assassins pursue him across a desert wasteland where they are caught at ground zero of a nuclear test site. Although the scientist survives the bomb's detonation, atomicradiation transforms him into a monster. Skin peeling off of his afflicted body, the beast embarks on a violent rampage, killing travelers and kidnapping women. A pair of rangers track the mutant through the corpse-strewn desert with one objective - destroy the killer and end his spree.The distinctive style of Coleman Francis is perplexing, mind-numbing and yet often (though unintentionally) creepy. Due to budgetary limitations, The Beast of Yucca Flats was filmed without sound, with narration andoccasional dialogue added afterwards. Tor Johnson's trademark lumbering only adds to the absurdity and inadvertent humor.