In The Knockout, Lei Lei is the son of Xu Lei, Xu Jiang. He went to the battlefield boss Bai Jiangbo's site to gamble, but failed to pay, and repeatedly made Bai Jiangbo ashamed. The Knockout is a criminal investigation drama directed by the Propaganda and Education Bureau of the Central Political and Legal Committee and the Political and Legal Comprehensive Information Center of the Central Political and Legal Committee, produced by iQiyi and Bai Liu Film and Television, directed by Xu Jizhou and starring Zhang Yi, Zhang Songwen, whitehairpin and Zhang Zhijian. On June 5438+1October 4, 2023, it was broadcast simultaneously on CCTV8 TV channel and iQiyi video.