Joseph "Doc" Frail is a doctor with a past he's trying to outrun. While in Montana, he comes across a mining camp with a hanging tree and rescues a man named Rune from the noose. With Rune as his servant, Frail decides to settle down, and he takes over as town doctor. He meets Elizabeth, who is suffering from shock, and the two soon fall in love. But when Elizabeth is attacked, Frail's attempt to help her lands them both in trouble.

100多年前，英国贵族约翰摩根来到美国西部印第安人苏族部落定居，当上了酋长。可是这里从未安宁过，种族之间的斗争连绵不断，再加上大批淘金者和亡命徒的涌入，他们为了掠夺黄金，不惜杀害苏族人。摩根为了苏族人的生存，惨遭歹徒暗杀，他的儿子科达为了实现父亲的遗愿，在科洛族姑娘红鸟的协助下，杀死了牧师帕金斯等一伙恶人，终于使苏族人生存下来！理查德．哈里斯饰演片中英国绅士一角，其演技颇受观众好评，另外莱迪安德逊、珍．盖斯科的表演也不俗。