The Airmail Mystery
A pilot and a gold mine owner go up against the evil Black Hawk, who has invented a plane that can take off and land without using a runway.
- Genre: Seikkailu
- Maa: United States
- Johtaja: Ray Taylor
- Näyttelijät: James Flavin, Lucile Browne, Wheeler Oakman, Frank Hagney, Sidney Bracey, Nelson McDowell, Walter Brennan, Al Wilson, Jack Holley, Bruce Mitchell,