Investigate a forgotten history; travel on a mythical train through a harsh region, gather testimonies from the survivors of an epic journey; not only to seek the truth, but to discover that even in the 21st century there are still legends to tell and explorers willing to venture into the unknown. Following the route once taken by the ancient Tehuelche and Mapuche peoples in caravans; crossing the Somuncura Plateau, one of the most desolate places in the world; traversing Patagonia, through ancient rock formations and canyons untouched by human hands, learning the history of the place, its people, and how they built the southernmost railway in the world many years ago.