Immersive documentary in two parts, filmed in high-resolution 360° 3D, which follows Alex Honnold's journey through Yosemite National Park, home to the famous El Capitan – immortalized in the film “Free Solo”, then at Red Rocks , in Nevada, west of Las Vegas. Then it's off to Europe where he teams up with Swiss climber Nicolas Hojac in some of the most difficult solo free climbs in the Dolomites. In episode 2, the two climbers tackle the Directe americaine on the Aiguille du Dru in Chamonix and the Kuffner ridge on Mont Maudit, the second highest peak of the Mont Blanc massif, in free solo.