The Traverse: Valentine Fabre and Hillary Gerardi, two high-level complete athletes, take on the challenge of establishing the first female record on the non-stop Haute-Route, a legendary ski mountaineering endurance race linking Chamonix to Zermatt in 100km and 8000m altitude difference. A feat that the two women take on, as much for personal reasons as for the representation they offer by achieving this great female first.