It's the police. Ma Tao once worked with Yang Jian in the anti-drug detachment, and later followed Yang Jian to the power supply bureau. The Knockout's TV series mainly tells the story of An Xin (Zhang Yi), a frontline criminal policeman in Jinghai. In the struggle against the evil forces, he was constantly hit by the umbrella, and he was always unable to bring criminals to justice. After the education and rectification of the national team of political science and law was carried out, Linjiang Province sent a steering group to the Jinghai, United with public security, legal system and other departments to eliminate corrupt elements within the team of political science and law, smash the umbrella of evil forces, and eradicate powerful groups that have occupied the Jinghai for many years.