Mountains. Crevasses. And Prince Harry. In this new documentary five soldiers wounded on the battlefields of Iraq and Afghanistan take on one of the world’s toughest challenges, Mount Everest, supported by Harry. Narrated by John Simm, this 90-minute observational programme follows the quintet from training in the UK with Harry to their attempt to climb the 8,848-metre peak. In a year that saw 11 deaths on the world’s highest mountain, the team struggles with altitude, night climbs in extreme temperatures, deadly avalanches and terrifying crossings over seemingly bottomless crevasses.