Directors: B. Reeves Eason, Joseph Kane
Cast: Clyde Beatty ... Clyde Beatty Manuel King ... Baru Tremaine Elaine Shepard ... Valerie Tremaine Lucien Prival ... Dagna Wheeler Oakman ... Durkin Edward McWade ... Gorn Edmund Cobb ... Craddock Ray Turner ... Hambone Donald Reed ... Negus
Expert lion tamer Clyde Beatty meets wild boy Baru and agrees to help him rescue his sister, Valerie, from the mysterious lost city of Joba. Joba is strange city indeed and guarded by a race of winged bat men who are loyal to the wicked High Priest Dagna. Fifteen exciting chapters of peril, adventure and savage wild beasts!