In the case of Guo Weijie's successful detection of an overseas spy traffic station, he accidentally discovered the existence of Wu Yu's first-level top-secret files and immediately handed them over to Hu Xiafeng.At this point, Hu Xiafeng suddenly realized that Wu Yu was not only an undercover agent, but had also been quietly lurking for nineteen years.During these long years, Wu Yu was under tremendous psychological pressure all the time, but his heart was always filled with loyalty and sacrifice to his country and family.

After Wang Beili saw the files sealed by Guo Weijie, although she could not know the specific contents, she speculated that it had something to do with Wu Yu.She asked Guo Weijie for more information about Wu Yu, but Guo Weijie did not reveal much.Nineteen years is enough time to change many things, including Wu Yu's whereabouts.Similarly, international spy Zhang Chi also went into hiding for nineteen years. He used a high-temperature electric heating rod to burn off the tattoos on his back to eliminate all traces.

While giving Zhang Chi a massage, the female technician noticed the large burn scars on his back and guessed that the industry he was engaged in was full of risks.Although Zhang Chi said he wanted to change careers, he had no choice but to complete his task and could only place his hope in the future.

At the same time, He Zhifei was dissatisfied with the order for everyone in Institute 901 to wait for self-examination. Jiang Dazhong came to comfort him and promised to find the minutes and documents as soon as possible.After Wen Bo was used by his black-hearted mentor to steal state secrets, he jumped off the building and committed suicide in despair.Although Jiang Dazhong and others arrived quickly, they were unable to save his life.

Guo Weijie personally went to Wujiang City to investigate and found that a man named “Xiong Xiaotian” had close ties with Wu Yu.Although Xiong Xiaotian had suffered a stroke and was paralyzed, his thinking was still clear and he was full of admiration for Wu Yu.

As the only person who knew Wu Yu's undercover identity, Luo Ping came to Wujiang in disguise and gave Wu Yu the latest mission instructions.He told Wu Yu that he should follow Xiong Xiaotian to find the mastermind behind the scenes, thereby revealing the true identity of the man in the fisherman hat.While Wu Yu was working as a bartender at the Fireworks Time Dance Hall, he accidentally rescued Huang Xiao, which attracted Xiong Xiaotian's attention.

Wang Beili was confused about Wu Yu's depravity, and she guessed that it was related to the files brought by Guo Weijie.Wu Fang, on the other hand, could never forgive her brother.Wen Bo's death triggered a storm of public opinion, and the municipal party committee demanded that the incident must be quelled.After investigation, Hu Xiafeng and others found that all media came from foreign forces, which was obviously a conspiracy by international foundations.