Guarda su Altadefinizione. Follows endurance athlete Klaas Willems on an extraordinary journey from the trails of Sardinia to the start line of the Lavaredo Ultra Trail 50K in the Dolomites. Living with cystic fibrosis and having overcome cancer, Klaas refuses to let his condition define him. Instead, he continues to pursue a life shaped by movement, mountains, friendship, and the outdoors.