Screenplay: Colbert Clark

Direction Colbert Clark · Armand Schaefer

Cast Jack Mulhall · Raymond Hatton · Ralph Bushman · John Wayne

Plot Tom Wayne rescues Clancy, Renard and Schmidt in the Arabian desert and they join him in going after El Shaitan, a bad guy who is never seen as he tries...

Direction Colbert Clark · David Howard

Cast Jack Mulhall · Bob Steele · Lucile Browne · Guinn 'Big Boy' Williams

Plot Hank Davis, foreman on a huge dam project, enlists the aid of his two flyer friends when a sinister figure known as The Black Ace leads his Mystery Squadron of...

Direction Christy Cabanne

Cast Norman Foster · Judith Allen · Sidney Blackmer · Purnell Pratt

Plot Mary Kennedy, the daughter of police lieutenant Jim Kennedy, works for an unethical criminal attorney and is corrupted by the association. But she sees the light when she twists the...

Direction J.P. McGowan · Armand Schaefer

Cast John Wayne · Shirley Grey · Conway Tearle · Tully Marshall

Plot When his father is killed in a train wreck, Larry Baker vows to unmask a mysterious criminal called "The Wrecker," who has targeted the L&M Railroad for deadly" accidents."

Direction Colbert Clark · Armand Schaefer

Cast Johnny Mack Brown · Betsy King Ross · Noah Beery · Noah Beery Jr.

Plot A pack train led by Kit Carson is attacked by Kraft and his Mystery Riders, who want a government shipment of gold carried by the wagons. Matt Fargo manages to...

Direction Colbert Clark · Albert Herman

Cast Bela Lugosi · Viva Tattersall · Malcolm McGregor · Henry B. Walthall

Plot A mysterious criminal known as The Whispering Shadow commits crimes by means of a gang he controls by television and radio rays. Jack Norton, whose brother was murdered by The...