Sentenced to hang for a murder he didn't commit, mustang man Auggie Kellerman escapes from custody and heads back to the scene of the crime to clear his name. As an escaped prisoner, he is fair game for every lawman, bounty-hunter, and Indian-tracker in the Arizona Territory. And also a fast-moving target for Charlie Keogh, the so-called Copper King of Arizona, the one man who stands to lose everything if he makes it back alive. The only thing for it is a dangerous ride across the harshest stretch of trail known to mankind - is the Devil's Highway. Often enough in the West, a man's reputation is all he has and Kellerman's is badly in need of some six-gun justice.