Blue Peter presenter Helen Skelton makes an epic 500-mile journey to the South Pole by kite, by ski and - in a world first - by bike, to raise awareness for Sport Relief.
Celebrities perform famous dance routines in front of a panel of judges to raise money for the Sport Relief appeal, with viewers voting for their favourites.
Series which follows comedian Eddie Izzard rising to the challenge for Sport Relief by running an astonishing 43 marathons in 51 days