Gu Yizhong took the initiative to come to the door and pointed out that the spring water should be hidden in Zhou's mansion, thereby threatening Zhou Zhifei and asking him to hand over the No. 8 cell at the bottom of the sea.Zhou Zhifei bit him to death, cell number eight was Gu Yizhong.In Fengyuan Bookstore, Gu Yizhong went to look for Haimo, but saw her being beaten up by patriotic students because of her reputation as a traitor.Gu Yizhong educated those students and sent an invitation to Haimo, inviting her to come to the boat to get together.Gu Yizhong asked Haimo about Mrs. Weng's background, and gave Haimo some money to go back to her hometown to buy some land and live a stable life.Haimo refused, but moved back to the garden and took care of Gu Yizhong's daily life.Because Jiang Boxian was targeted, Mr. Li secretly imprisoned him in No. 90 - Jiang Boxian was the secret envoy sent by Chiang Kai-shek, intending to negotiate privately with the Japanese.He told Zhou Zhifei that if necessary, he could kill Jiang Bo first to silence him.Zhou Zhifei used this to persuade Mrs. Weng that Chiang Kai-shek wanted to sue for peace with the Japanese in private, and there was no need for agents like them to continue to work hard.But Mrs. Weng didn't want to believe it and wanted to carry out the task.On the other side, Gu Yizhong came to the archives room to return Cui Yaomin's files, but unexpectedly saw Xiao Junxia's name.Zhou Zhifei deliberately used Xiao Junxia, who was still alive, to lure Gu Yizhong. As long as Gu Yizhong wants to rescue him, there will be flaws.He set up a trap to ask Gu Yizhong to escort the prisoner and reunite with Xiao Junxia.