Sir Ranulph Fiennes: Mad, Bad and Dangerous

Sir Ranulph has circumnavigated the surface of the globe from pole to pole, became the first person to cross the Arctic and Antarctica on foot, broken countless world records of endurance, and discovered the Lost City of Ubar in Arabia. Despite his infamous fear of heights, he is the oldest Briton to summit Everest, achieved on his third attempt. But these extraordinary accomplishments have come at a cost: he has lost half his fingers to frostbite, almost died countless times, and suffered a heart attack and double bypass only three months before he completed seven consecutive marathons in seven days on seven continents.