斯蒂文巴克肖：挑战垂直峭壁

Steve Backshall takes on one of the most notorious mountain climbs in the world: the North Face of the Eiger in Switzerland. 　　As he sets out to realise his boyhood dream, Steve knows that it’s the team around him who will make all the difference. 　　Steve’s wife, double Olympic rowing champion Helen Glover, puts him through his paces as he strives to reach peak fitness in the month...