The story begins with the ancient tribal chief Buta leading his people to climb through the mountains, wishing to find a new place to live and to build a new tribe. Once in the cloud and the heavy fog, Buta gets lost and finds himself being an intruder in a demolished urban tribe in the modern time.
In the modern city, another Atayal (Taiwanese aborigine), Taqun, – who is the Minister of the Council of Indigenous Peoples – is facing a dilemma on the government's decision to demolish the indigenous tribes in the cities. Feeling helpless and hopeless, Taqun goes to one of the demolished tribes. Unfortunately, an accident leaves him in coma.
Waiting for Taqun's to wake up from his coma, Taqun's brother Yukan starts a series of conversations with the lost spirit, Buta. Their words will bring the viewers to a long forgotten world – a world of the modern indigenous people's lives in the city, a world of their unique philosophy, and a world of another culture……