On the eve of liberation, several major military spies-Luo Zongding, the principal criminal who made the Twelve Bridges tragedy in Chengdu crazily, fled to Tibetan areas in western Sichuan. Mo Wenbiao, the executioner covered in human blood, turned into a strange poor peasant and appeared in Beishan Township, Sichuan Province. After Mu Jun, an experienced military telecom spy, changed his name and surname and lurked in Chengdu. Fan, the wily acting director of the Pseudo-provincial Police Department, entered the political training class for voluntary surrender registration personnel run by the Public Security Department of our military management committee as a rebel ... Zhao Datong, the leader of the public security department in the old Jin-Sui area, Zhu, a reconnaissance hero from the army who once worked as an enemy spy in the northern city, and the first generation of people's public security soldiers from different fronts with different life experiences and work habits, faced with the rebellion, destruction, assassination and defection of enemy spy, their relatives, lovers and even themselves were wronged. Cen's best friend, Jiang's fiance, Li Jianzhi, the former leader of the Sichuan and underground party military groups, suddenly became the "chief of staff" of the enemy Luo Zongding's "anti-Communist guerrillas"; According to the requirements of the organization, Jiang drew a clear line with Li Jianzhi, while the younger sister of the head of the Tibetan area in western Sichuan fell madly in love with him. Bai Yan, a female student of West China University who has been pursuing Cen, suddenly died in the medical home of intern Lang Jishi, while the famous actress of Sichuan Opera who had a long-term crush on Cen was put into her own troupe. Lu Qing, an air-dropped spy who sneaked into Chengdu, suddenly found that his wife and her boss, the telecom spy Hou, pretended to be husband and wife, while the deputy director of the Public Security Department found in Chengdu that the director of the Southwest Public Security Department from Chongqing was an old lover who played a fake husband and wife with him in Shanghai during the Anti-Japanese War. What are Liu Ma, Zhao Datong's nanny, and Lang Jishi's coachman dumb ... and so on? In these confusing stories, I am the enemy and I am the enemy. We have entered that mysterious history and entered the beautiful, complex, changeable and touching life and mind of the first generation of public security soldiers in New China. ...