True story of Ernest Shackleton's Antarctic adventures. Bound for Antarctica in 1914, Shackleton's ship, the Endurance, was trapped in the pack ice of the Weddell Sea. Ten months later, the ship sank, stranding Shackleton and his crew of 27. Based on the diaries and first person accounts of expedition members, the film tells of their ordeal and their 800-mile journey in an open boat across the world's worst seas that made their rescue possible.