Gene Autry's the ranch owner whose radium-rich property is coveted by some crooks, and the fight leads both parties to the underground kingdom of Murania in this feature-length version of Gene Autry's action-packed "The Phantom Empire" serial. With Betsy King Ross, Frankie Darro, Smiley Burnette. AKA: "Couldn't Possibly Happen," "Men with Steel Faces." 70 min. Standard; Soundtrack: English.