Bill 'Cowboy Rambler' Boyd

Both Lawrence and Salter are mine owners. Salter has planted men at Lawrence's mine and when Lawrence ships his high grade ore, they switch it with Salter's worthless ore. Obtaining ore samples from both mines, Marshal Lee Powell figures out the scheme and he and his deputies Art and Bill go after the bad guys. (imdb)

Shannon wants Hank Stoner's land for the vanadium ore it contains. He has chemist Wainwright, who can change the ore into gold, held prisoner. But the Frontier Marshals are on the job.

A ring of cattle thieves uses short-wave radio to communicate with each other. A trio of range detectives must find a way to capture the gang.