At the Northern part of Xinjiang, two policemen were killed by a group of poachers and the prey were nowhere to be found. Five years later, Wei Jiang left the the police station in the forest, and chose to become a protector of the borders. By chance, he becomes Qin Chuan's teacher, and leads him on the path of patrolling. They meet the local vet Ye Xiao Wan, as well as leader of the animal activist group Sai Na. Together, they found the traces of the poachers, and began a fierce battle with them. Finally, the poachers were caught, and justice was served..