This 13 chapter serial is based on the comic strip character Ace Drummond created by Eddie Rickenbacker. Ace is a 'G-Man of the sky' working out of Washington D.C. He is sent to Mongolia to find out why a mysterious … John 'Dusty' King, Jean Rogers, Noah Beery Jr., Jackie Morrow, Chester Gan, Guy Bates Post, Lon Chaney Jr. Added on Amazon Prime 2023-06-20.