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.

In 1975, Raymond Renaud, Yves Pollet-Villard, Maurice Gicquel, Maurice Cretton, Jean Coudray, Yvon Masino, Walter Cecchinel, all teacher guides at ENSA in Chamonix, with the help of the Indian Mountaineering Foundation, set out to cross the 2 peaks of the highest mountain in India. After 43 hours in a truck, 10 days of slow and difficult approach walking, helped by goats for the portage due to lack of sherpas, the base camp is set up on the Nanda Devi glacier. Two groups share the two eastern and western slopes, 3 kilometers separate them: the goal being to meet between the two summits by the ridge. But on the big day, with the monsoon, bad weather arrives with wind and snow, we will have to give up. Like the French expedition of 1951 which lost two mountaineers, Roger Duplat and Gilbert Vigne, to whom Paul Gendre and Louis Dubosc pay tribute.