Flaming Frontiers (1938) is a Universal movie serial starring Johnny Mack Brown.
Prospector Tom Grant discovers a rich gold vein up South.
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.
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… Along with Heroes of the West (1932) this serial was based on "The Tie That Binds" by Peter B.