Flaming Frontiers (1938) is a Universal movie serial starring Johnny Mack Brown. It was a remake of Heroes of the West (1932). It was re-edited into a TV series in 1966. Much of the material was reused in Lon Chaney Jr.’s 1942 serial Overland Mail.

Plot
Prospector Tom Grant discovers found a rich gold vein up South. His findings however, soon attract landowner Bart Eaton. Tom’s sister Mary heads for the gold fields with Eaton and his men following. Eaton teams up with Ace Daggett who plans to doublecross him and get the gold for himself. They then frame Tom for murder and then try to get him to sign over his claim. The scout Tex Houston is on hand, escaping the attempts on his life, saving Mary from various perils, and trying to bring in the real killer and clear Tom…

Cast
Johnny Mack Brown as Tex Houston
Eleanor Hansen as Mary Grant
James Blaine as Bart Eaton
Charles Stevens as Henchman Breed
William Royle as Henchman Crosby
Edward Cassidy as Henchman Joe
Jack Rutherford as Buffalo Bill Cody / Daggett Henchman Rand
Charles Middleton as Ace Daggett
Ralph Bowman as Tom Grant
Chief Thundercloud as Thundercloud
Horace Murphy as The Sheriff
Karl Hackett as Daggett Henchman Jake
Charles King as Daggett Henchman Blackie
Jack Roper as Wolf Moran
Bill Hazlett as Chief Spotted Elk
James Farley as Wagonmaster Hawkins
Eddy Waller as Andy Grant