Secret and Great

After the victory of the Anti-Japanese War, Gu Yaodong (played by Li Yifeng), a top law student who grew up in a Shanghai alley, became a policeman after graduating from university with the ideal of "supporting justice and protecting the people". However, Gu Yaodong, who had just entered the workplace, was not only squeezed and suppressed by his colleagues in the police station, but was also involved in the fierce struggle between the Communist Party's underground intelligence network and the Kuomintang police. In troubled times, Gu Yaodong had to make a choice to be loyal to his beliefs in the confrontation between justice and injustice. In the end, with the help and training of the Shanghai Underground Police Committee of the Communist Party of China, with Xia Jicheng (played by Wang Longzheng) and Shen Qinghe (played by Jin Chen) as the backbone, he fulfilled his ideals on the revolutionary journey and also gained precious love.