On 29 May 1953, Edmund Hillary and Tenzing Norgay were the first people ever to reach the summit of Mount Everest. Today, climbing eight-thousanders has become big business. But not all expeditions are motivated by money. Inspired by the spirit of the first ascensionists, German mountain guide David Göttler has long been one of the most successful high-altitude mountaineers. He sets off into the mountains in search of new routes and to explore his own limits, pushing the boundaries of the humanly possible.