It is the story of the Conquest of the Desert, of the war that Argentina and Chile maintained against the native population of Pampas and Patagonia.
A young Mapuche from Bariloche claims his identity and his culture. A Guluche journalist travels through these territories trying to recover the memories of the elders about the war and the massacre of his people. A historian from Buenos Aires finds in the archives the documents that allow him to prove who financed the army and what they obtained in return. A descendant of a general who intervened in the contest travels inside to witness the ceremony of the wiñoy tripantu, the longest night and the return to the cycle of life.