Glenn Strange

A Civil War guerilla gang plans an attack on a Kansas arsenal.

To investigate a gold-shipping scam, a postal inspector goes undercover and tries to infiltrate the gang he believes is responsible.

John Middleton is investigating cattle rustling when he is captured and tossed into a cave with Emmett, a rancher who disappeared earlier. They help each other escape and learn that a local banker is trying to scare everyone away to grab up some secret gold mines.