A frontiersman on a fur trading expedition in the 1820s fights for survival after being mauled by a bear and left for dead by members of his own hunting team.
美國,19世紀初,拓荒年代,在文明邊境遊蕩著一群靠動物皮毛賺錢的獵人。其中一名獵人「休格拉斯」跟隨團隊翻山越嶺,在途中意外遭受野生灰熊的攻擊而受重傷,同行夥伴們卻為了保性命拋下他自生自滅。僥倖存活下來的他決定將千里跋涉討回公道,並踏上一趟前所未見,奇蹟般的旅程。