In the last days of the Heroic Age of Exploration, Ernest Shackleton dreamed of crossing the frozen heart of Antarctica, a place of ferocious seas, uncharted mountains and bone-chilling cold. But when his ship, the Endurance became trapped in the deadly grip of the ice, Shackleton's dreams were shattered. Stranded in a cold, white world, and thousands of miles from home, the men of the expedition set out on a desperate trek across the ice in search of rescue.