Chaser Shaun 'the Dark Destroyer' Wallace, attempt to row the entire length of Britain.The series promises to be one of the toughest shows ever filmed on land and sea and will follow the celebrities as they step out of their comfort zones and onto their sea legs to compete in the tough challenge.Other celebrities set to sail include British politician and author Tom Watson, sports presenter and Olympic gold medalist Denise Lewis and English supermodel and broadcaster, Jodie Kidd.The X Factor