Third most visited natural site in the world after Niagara Falls and Mount Fuji, the Mont-Blanc massif fascinates. Cradle of world mountaineering, land of adventure for the pioneers of climbing and skiing, giant laboratory for scientists, inspiring muse for writers and painters, land of extraordinary technological conquests, the "Roof of Europe" is both a place of spectacle and a place of conquest. At its feet, the Chamonix valley, "the daughter of Mont-Blanc", has an astonishing history, sometimes captivating, always unique. This film is the story of a "conquest". Told over more than three centuries, this documentary aims to tell the crazy story of a small mountain village, isolated, even secret, where in the year 1000, man confronts an oversized monster of ice and stones.