Pascal, 53, and Carole, 28, are shepherds. In the month of November 2010, they embark on their long winter transhumance: four months during which they will have to cover 600 km in the Swiss-French region, accompanied by three donkeys, four dogs and a eight hundred sheep. An exceptional adventure is about to begin: they brave the cold and the bad weather day in day out, with a canvas cover and animal skins as their only shelter at night. This saga reveals a tough and exacting profession requiring constant improvisation and unflinching attention to nature, the animals and the cosmos.