Four flying G-Men protect America against enemy spies; one of the four assumes the identity of The Black Falcon, to befuddle the saboteurs even further.
Columbia Pictures
The Hazards of Helen
Jesse James Rides Again
The Scarlet Horseman
The Master Key
Mystery of the Riverboat
Sea Raiders
The Black Coin
Custer's Last Stand
Perils of the Royal Mounted
The Phantom Rider