When the ancient continent of Mu sank beneath the ocean, some of its inhabitant survived in caverns beneath the sea. Cowboy singer Gene Autry stumbles upon the civilization, now buried beneath his own Radio Ranch. The Muranians ha...
Directed byOtto Brower, B. Reeves Eason
Written byWallace MacDonald, Gerald Geraghty, Hy Freedman
CountryUnited States
Runtime245 min
On screen
Gene Autry
Frankie Darro
Betsy King Ross