Description：The film is adapted from a real case and reveals for the first time the armed drug dealers who are the most powerful forces on the border. In the late 1990s, the "8077" special forces of the border defense police in the southwest border of my country encountered mountain torrents and drug dealers' calculations during a drug eradication mission, resulting in heavy casualties. For the sacrificed brothers, the surviving soldiers of "8077" vowed to pursue them to the death.