Little Britain star David Walliams braves freezing waters and the world's busiest shipping lane during his epic attempt to swim 21 miles across the English Channel to raise cash for Sport Relief. Inspired to take the plunge following a life-changing trip to Ethiopia, this programme documents David's incredible journey across nine months of tortuous training and throughout his remarkable swim.More
British stand up comedian John Bishop embarks on what will truly be a week of hell - and all to raise money for Sport Relief. John will attempt to travel from the Arc de Triomphe in Paris to reach Admiralty Arch in London in just 5 days using just a bicycle, a rowing boat and his own two legs. He'll be helped along the way by some famous friends as he attempts to raise money to buy lifesavings vaccines for children in Africa.