In a legendary feat of leadership and perseverance, Antarctic explorer Ernest Shackleton kept alive his crew of 27 men for over a year despite the loss of their ship in frigid pack ice. Over a century later, a team of modern-day explorers sets out to find the sunken ship. From National Geographic Documentary Films and directed by Chai Vasarhelyi, Jimmy Chin and Natalie Hewit, ENDURANCE threads together the inspiring stories of these two landmark expeditions, bound by their shared grit and determination.