After pulling off their latest train robbery, outlaw leader C. C. Ellis and his unruly gang of long riders set their sights on a new target, a rich mining operation. There are only two men who can stand in their way: Sheriff Max Boyd, a lawman who doesn't always play by the rules, and Colonel Randolph Doss, the brutal security chief of the Colorado Western Express R.R. Co. Doss pursues Ellis like Ahab pursued the white whale, while Boyd pursues his aim of keeping the town standing.