In february 1954, six young french people carried out one of the most formidable feats in history of moutaineering: they conquered the south wall of Aconcagua, 6960 metres high, the peak of the Andes Cordillera and the two Americas. A vertical wall of rock, fresh snow and ice. Unlike the techniques used in the Himalayas where a number of base camps are made with the help of porters up to the summit, the method chosen by the six climbers was to attack the mountain alone, with lightweight equipment, without any provisions or oxygen masks. This choice left few alternatives: either success or death. The six conquerors of Aconcagua, with their feet and hands amputated as a result of frostbite, give us - through their testimonies, old film and film shot in Argentina - a lesson of humanity and courage.