Five months after falling thirty meters into an ice crevasse and being rescued by helicopter, Arnaud chose to return. La Trace follows his attempt at the Summum Mont Blanc: 3.8 km of cold-water swimming, 180 km of cycling with 3,000 meters of elevation gain, and the ascent of Mont Blanc from Saint-Gervais, nearly 4,000 meters of vertical climb. All in a single day.