Documentary on one of the first editions of the Trofeo Mezzalama, the highest ski mountaineering race in Europe, at more than 4,200 meters above sea level, which takes place on the glaciers of Monte Rosa, from Breuil to Gressoney-La-Trinité, crossing the summits of Castor (4,199 meters) and Nez du Liskamm (4,100 meters). The film recounts the last hours of feverish preparation before the start, the teams preparing for the race linked in ropes, then follows the stages of the competition by follow...