邓巴中尉（凯文•科斯特纳 Kevin Costner 饰）在南北战争中立了大功，政府为了褒奖他，给了他任意选择驻地的特权。邓巴渴望着一种全新的生活，于是选择了遥远偏僻的西部哨所塞克威克。这里住着大量的印第安苏族人。 　　一开始苏族人把他的到来有着抗拒，当邓巴主动接近和了解他们的生活，并搭救了一个从小在苏族长大的白人少女后，族人和他之间的关系开始回暖。他得到了一个印第安名字：与狼共舞。邓巴的骑术让族人惊叹，他的善良被大家称赞，和白人少女也日久生情。一次对抗外族入侵的战争中，邓巴更是被封为了苏族人的民族英雄。 　　然而马背文化的没落已成必然，白人士兵来到这片土地，驱赶苏族人，捕捉“叛徒”邓巴，这片朴实的土地慢慢改变了容颜……Lt. John Dunbar is dubbed a hero after he accidentally leads Union troops to a victory during the Civil War. He requests a position on the western frontier, but finds it deserted. He soon finds out he is not alone, but meets a wolf he dubs "Two-socks" and a curious Indian tribe. Dunbar quickly makes friends with the tribe, and discovers a white woman who was raised by the Indians. He gradually earns the respect of these native people, and sheds his white-man's ways.