orologio en Altadefinizione. After 20 years away, Isabelle, a former climbing champion, returns to her village in the Alps for the funeral of her mountain-guide father. She decides to open up a new climbing route with the help of Kenza, her protégé - something she'd planned to do with her father. But the past and its secrets resurface through Antoine, a brilliant mountaineer who was Isabelle's first love.