There has always been a need in the spy game for cover missions so black no one in the American government, and almost no one in intelligence itself, knows of their existence. The left hand can't know what the right hand is doing. Austin Clay is that right hand, executing missions that would be disavowed by his own government if he's ever compromised. Clay is sent to track down a missing American operative, a man who was captured outside of Moscow,

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Arizona in the late 1800s. Infamous outlaw Ben Wade and his vicious gang of thieves and murderers have plagued the Southern Railroad. When Wade is captured, Civil War veteran Dan Evans, struggling to survive on his drought-plagued ranch, volunteers to deliver him alive to the train that will take the killer to trial. On the trail, Evans and Wade, each from very different worlds, begin to earn each other's respect. But with Wade's outfit on their trail,...