Singing cowboy Gene Autry, in his starring screen debut, dukes it out with land rustlers and then must battle the technocratic warriors of an underground kingdom located beneath his Radio Ranch. Western/sci-fi serial smash-up also stars Smiley Burnette, Frankie Darro, Betsy King Ross. 12 episodes; 4 hrs. Standard; Soundtrack: English mono. Standard; Soundtrack: English; photo gallery.