The history of the Chamonix Guides Company is inseparable from that of mountaineering and the valley where it was born. For 200 years, guides have risen to multiple challenges, making their organization a legend. Today, they are the actors of a changing mountain: overcrowding, global warming, loss of freedom—the causes are multiple. This film is at a crossroads. Between tradition and modernity, it traces the history of the Chamonix Guides Company, evoking the incredible challenges it has met with dignity and those it now faces.