Early in the morning, a murder occurs in the mountains: Ranger Li Tiangou shot and killed in the village of hole three brothers. The scene of the crime, a rod and gun down in a pool of blood, a be hardly worthy of belief is, Li Tiangou was severely wounded be at one's last gasp case, with this pole gun completed a precise shot. Li Tiangou is a war hero, in the battlefield is crippled leg, back to the place, was assigned to the remote state-owned forest farm forest Pan Yuan Cun, when a ranger. The three brothers in the gun is the local reputation prominent figures, known as "the three dragons".