Cheng Shiru and Cao Shun arrested Uncle Qi, but they didn't expect that the person who connected them would detonate the bomb directly. Uncle Qi in the crowd turned and left quickly, but Cao Shun was keenly aware of it. When she turned around, it turned out to be Mrs. Wu. Cao Shun was very surprised, and Cheng Shiru ordered her to be arrested first to check her identity. At this time, Mrs. Wu dressed well and talked well, she didn't look like an old lady in Gaofu at all. Cheng Shiru guessed that her usual and real identity must be the opposite.
Aunt Wu was arranged to live in Xiaobailou temporarily, and Cheng Shiru put her under house arrest instead. Aunt Wu was very sad when she saw the party flags left by Xiao Qi and Zhenzhen, while Mrs. Gao was thinking about Aunt Wu and couldn't do without her. Gao Dafu and Mrs. Gao were also a little worried when they didn't see Mrs. Wu coming back. Zhao Yunfei went to report in the morning, and then stayed with Chen Yuting all the time. Cao Shun was weird in the morning, and Zhao Yunfei felt a little puzzled. Chen Yuting thought that there must be something that Cao Shun hadn't figured out. So, Zhao Yunfei and Chen Yuting went to Gao's house, but they didn't expect that the Secrecy Bureau just sent someone to talk to them, saying that they brought Aunt Wu to cooperate with the investigation of Uncle Qi.
Sister-in-law Wu didn't come to the store for the past two days, Zhu Zi and Xie Xiaoya were very puzzled. Sister-in-law Wu's identity is uncertain, and things like Steward Dong's can't happen again, so Cheng Shiru can only take care of her. Lingling kept calling her mother's name in her sleep. She didn't have a mother since she was a child, so she often did this. Wang Zhenchuan went to deliver goods to Gao's family and learned that Mrs. Wu had been taken away again. Chen Yan went to Gao's house, Gao Dafu was angry but he couldn't do anything about it. A few days later, Gao Dafu personally went to the Secrecy Bureau to surround Cheng Shiru's dignitaries, and Zhuang Meijiao took out a gun when she disagreed. Zhao Yunfei wanted to save Aunt Wu, no matter what her status was, he couldn't just let her die.
At this time, Cheng Shiru received information from Aunt Wu. Her real name was Zheng Qun. She was an undercover agent of the Communist Party lurking in Gao's house, and she was a foreign student studying in France. She was not illiterate at all. Zheng Qun was also born as the daughter of Zheng Wanan, and his elder brother Zheng Bin was deeply appreciated by Chiang Kai-shek. Gao Dafu was speechless and choked when he saw these, but he and Zheng Wan'an had also paid homage to their brothers, so Gao Dafu fainted in a hurry. Mrs. Wu is a Communist Party member. Mrs. Gao couldn't believe it, especially after Mrs. Gao learned of Mrs. Wu's true identity, she cried to death. Zheng Wan'an is the benefactor of the whole family, and they should save Mrs. Wu. Hearing what they said, Adjutant Zhou deliberately told Zhao Yunfei the news.
Aunt Wu was Chen Yan's only contact person, and his arrest made him lose contact with the party organization. When Yan'an learned that Wu Sao was arrested, he quickly arrested the traitor and tried his best to rescue Wu Sao. Cheng Shiru took Cao Shun to meet Wu Sao. After she became a general, they hoped that Wu Sao would cooperate with the Secrecy Bureau. As the scope of the investigation expanded, Li Jinping suspected the relationship between Director Liu and Ji Min, and planned to talk to Director Liu first. Director Liu also became suspicious of Ji Min's identity. Li Jinping and Linda went to his house to check the situation, but Director Liu had already left with a gun. Director Liu was very angry when he found out that Jimin was a spy. He always felt that something was wrong during this time. It turned out that Jimin approached him for a purpose. Ji Min pretended to surrender, but shot and killed Director Liu while he was not paying attention. Li Jinping and Linda hurried over when they heard the gunshots, and found Director Liu's body along the bloodstains. Ji Min lay beside him and died. They deduced that Director Liu was killed by Ji Min, but the truth of Ji Min's killing is still unknown, and there must be someone else who killed Ji Min. Perhaps, what killed Ji Min was her upline, Red Fox No. 24. Linda had doubts in her heart, how did the enemy agents know that Ji Min had been exposed?
Mrs. Wu will never cooperate with the Secrecy Bureau, her attitude is very clear.