The year is 1823, and the trappers of the Rocky Mountain Fur Company live a brutal frontier life. Hugh Glass is among the company's finest men, an experienced frontiersman and an expert tracker. But when a scouting mission puts him face-to-face with a grizzly bear, he is viciously mauled and not expected to survive. Two company men are dispatched to stay behind and tend to Glass before he dies. When the men abandon him instead, Glass sets out on an astonishing journey of survival driven by one desire: revenge.