The birth of this documentary film is a miracle itself. First of all, the main theme of this film is about "the last patrol of the wild yak team". The shot was taken at the altitude of 5100 meters high land, which is deadly and extremely oxygen deprivation. Secondly, In this film, it shows how the wild yak team and the anti-poaching people fighting the Tibetan antelope poachers with real guns, also with their blood, toil, tears, and sweat. On the other hand, It is the first time that shows the real-life image to the world with the form of documentary film. After all, because of the effective protection of the wild yak team，Hoh xil is officially listed as a world natural heritage site by the United Nation