Rolling Down the Great Divide (1942)
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.
Directed by: Sam Newfield
Starring: Bill 'Cowboy Rambler' Boyd, Art Davis, Lee Powell, Wanda McKay, Glenn Strange, Karl Hackett
Links: IMDb, Movie posters, Movie stills