In the last 100 years, twelve people have stood on the moon, more than 500 have been into space, and more than five thousand have climbed Everest. Yet the journey Captain Scott and his team died trying to complete a century ago remains unrealised. No one has ever walked from the coast of Antarctica to the South Pole and back again.
In 2013, Ben Saunders and his team mates Alastair Humphreys and Martin Hartley take on arguably the most ambitious polar expedition in the last century: the four-month Scott Expedition â€“ the first return journey to the South Pole on foot, and at 1,800 miles, the longest unsupported polar journey in history.
Here is a video of one of their training trips to Greenland.