Re-edited feature version of serial The Phantom Empire (1935). Singer Gene Autry discovers a race of advanced humans living beneath the earth.
Released: 1940-05-02
Runtime: 70 minutes
Genre: Action, Adventure, Science Fiction, Western
Stars: Gene Autry, Frankie Darro, Smiley Burnette, Betsy King Ross, Dorothy Christy, Wheeler Oakman, Charles K. French, Warner Richmond, J. Frank Glendon, Edward Peil Sr., Jack Carlyle, Peter Potter