In one of his better Monogram Westerns, Johnny Mack Brown goes up against a crooked saloon owner with more than one murder on his conscience. Steve Corbin (Tristram Coffin) and his gang of cutthroats are terrorizing the townspeople of Rimrock, who in self-defense hire Johnny Macklin (Mack Brown) as new town marshal. Corbin, meanwhile, kills a miner for his claim and threatens the local newspaper editor, Diane Foster (Reno Browne), who happens to be the daughter of Macklin's deputy, Idaho Jim Foster (Raymond Hatton). When a compromised jury returns a not guilty verdict, Macklin has Corbin transferred to the county seat but the villain manages to escape after killing a couple of witnesses. Naturally, the hero quickly hunts him down, restoring peace and tranquility to Rimrock. ~ Hans J. Wollstein, Rovi