Simon travels through Patagonia at the foot of the South American continent, a beautiful and rugged land of mountains, ice and endless wild grasslands, His journey takes him up to the huge South Patagonian ice field, through the foothills of the Andes towards the great Grey Glacier of eastern Chile. In Taibo and Jauny, Simon encounters two gauchos, the cowboys of South America, who live isolated lives in the mountains, tending their livestock and braving the storms in a simple hut for months on end.