A meeting of two world famous climbers, one an experienced mountaineer the other a sport climber, and a journalist (Ivan) results in a bet on which of the two is the best climber. Roger (the mountaineering expert) states that Martin (the sport climber) wouldn't survive a day on a 'real' climbing expedition, although he is considered to be the world's best sport climber (having just won an indoor 'world championship,' an event depicted in the opening scene). They plan to climb 'Cerro Torre,' in the Patagonia region of South America, near the Argentinian/Chilean border, one of the world's most difficult mountains, especially considering the extreme weather conditions common to the area.

Born in 1944 in South Tyrol, Reinhold Messner was introduced to climbing peaks by his father as a child. He has since climbed the fourteen mountains of the world culminating at more than 8,000 meters, and notably has to his credit the first ascent of Everest alone and without oxygen in 1980. This portrait is made up of the story given by mountaineer of his journey as well as testimonies from his loved ones and traveling companions. The interviews are interspersed with reconstructed scenes and extracts from archive films recounting his exploits. But there is no question here of becoming hagiographic, because Messner also draws his strength from his failures. When he's not climbing or roaming the desert, this troublemaker devotes his energy to various causes. In his Juval castle, located in his native South Tyrol, he exhibits the equipment of his expeditions as well as various objects, notably Tibetan. He has also written around fifty works to date.

Werner Herzog follows mountaineers Hans Kammerlander and Reinhold Messner during their expedition into climbing the Gasherbrum mountains, which has some of the most difficult peaks to be conquered, and they'll do it without the use of oxygen tanks. Herzog also takes some time to hear about their past experiences with other mountains, their personal tragedies and the reasons why they are so involved with such activity.

The great successes and tragedies in the life and work of Hans Kammerlander, the renowned mountaineer.