Polar explorer Tim Jarvis examines Sir Ernest Shackleton's boat journey across the Southern Ocean.
Veteran polar explorer, Tim Jarvis, is on a mission to discover exactly what happened on the most famous survival story in expedition history - Sir Ernest Shackleton's 800 nautical mile boat journey across the Southern Ocean and deadly mountain crossing of South Georgia. He's recruited five of the world's toughest explorers to wear 1914 clothes, eat basic rations and sail in a perfect replica of the tiny wooden boat Shackleton travelled in. They launch from Elephant Island but are hit by a fierce storm. As the crew battle freezing temperatures, a leaking boat and sea-sickness they lose all contact with their tracking vessel and suddenly find themselves in their worst nightmare: lost at sea.