The full story of daredevil Blue Peter presenter Helen Skelton's incredible attempt to walk a high-wire between two chimneys of London's Battersea Power Station - and set a new record for the highest high-wire walk ever by a woman in the UK. The 150-metre-long wire will be suspended 66 metres (216 feet) up in the air. The programme traces Helen's journey from the start of her training before Christmas, through a high wire bootcamp in the south of France, to the final record-breaking stunt, all in aid of Red Nose Day. Helen also visits children in Uganda to see the difference that Red Nose Day money makes.