Fleeing his old life after killing his former master, John Chinaman is exploring the ways of the new world. When he falls in with a wagon train of pioneers headed north, his new traveling companions include a fire-and-brimstone preacher, a family of Chinese immigrants, and a marshal escorting a dangerous criminal to trial. But Chow, once his best friend and now his sworn enemy, is hot on John's trail. And with him are a crew of cutthroat bounty hunters who share a mysterious past with the marshal's prisoner. A bloody confrontation between brothers-in-arms is inevitable, but who will be left standing?