Assaulting a police officer In the TV series "The Knockout", knife elder brother followed Gao Qiqiang's footsteps all the way, but he fell behind in the middle of assaulting a police officer and was jailed. The Knockout is a criminal investigation drama produced by CCTV and iQiyi, jointly produced by Bai Liu Film and Television and China Changan Publishing Media, directed by the Propaganda and Education Bureau of the Central Political and Legal Committee and the Comprehensive Information Center of the Central Political and Legal Committee, and directed by Xu Jizhou. The play tells the story of a 20-year life-and-death struggle between the righteous forces and the evil forces represented by the frontline policeman An Xin. Through group narration, it shows the black-and-white contest and complex humanity in the anti-vice action.