Xie Wenchao deliberately called to transfer the prison warden, leaving Gu Yizhong alone.Looking at the key close at hand, Gu Yizhong hesitated, but at the last moment, he restrained his impulse, saw through the conspiracy, and did not act rashly.Jiang Boxian, who was imprisoned in No. 90, pretended to faint and was sent to the Appeasement Military Hospital.As soon as the news came out, Mrs. Weng immediately took Ji Yuqing hostage, walked out of the gate of Zhou's house, and sneaked into the Appeasement Military Hospital to perform her mission.But they were outnumbered. At the critical moment, Zhou Zhifei rescued Weng Tai and blocked the Japanese.Zhou Zhifei was furious, Jiang Boxian couldn't save him, and Mrs. Weng's move was just to die in vain!Does she think she can save the country and nation on her own?Mrs. Weng said calmly, yes.Zhou Zhifei locked Mrs. Weng in the room and ordered Ji Yuqing to keep an eye on her.At the same time, Gu Yizhong started an operation to rescue Xiao Junxia under the guidance of Huang Qiushou.He contacted Xiao Ruotong and told her that Xiao Junxia was alive, and she led the rescue operation.No. 90 was impregnable, and a hard attack was impossible. The only way was to dig tunnels to save people. Gu Yizhong figured out the layout of the surrounding buildings, found a gap, pretended to be strolling around, and measured the building structure of No. 90 with steps.The local route was determined.He drew professional drawings that only Xiao Ruotong could understand, and sent Fugui to help her dig tunnels to save people.