In 1808, mountain man John Colter ran and climbed 150 miles while being pursued by members of the Blackfeet nation. His run for life became a part of heroic American history and culture. In 1823, hunter Hugh Glass, left for dead after being torn apart by a grizzly bear dragged himself out of his grave and crawled more than 80 miles to wreak revenge on the trusted friend who abandoned him. This authentic and unique historical novel follows the survival trail and blood spoor of both men. History has recorded their triumphs -- Colter discovering what is now Yellowstone National Park. Hugh Glass becoming an icon of the American frontier.