1823: Hugh Glass is among the Rocky Mountain Fur Company's finest men, an experienced frontiersman and expert tracker. When a scouting mission puts him face to face with a grizzly bear, he is viciously mauled and not expected to survive. The company's captain dispatches two of his men to stay behind and tend to Glass before he dies, and to give him the respect of a proper burial. But instead the men abandon him, taking his only means of protecting himself, including his precious gun and hatchet. With grit and determination, Glass begins to crawl inch by inch across more than three thousand miles of uncharted American frontier, negotiating predators both human and inhuman, the threat of starvation, and the agony of his horrific wounds ... driven to survive by one desire: revenge.