Gu Xixing arranged for Gu Yizhong to leave Suzhou and go to Hong Kong.But Gu Yizhong knew that he couldn't just be a coward. Xiao Ruotong risked his life to let him out just to clear his name. He must not let Ruotong down.Therefore, Gu Yizhong fled Gu Yuan with his father on his back.In order to check the evidence, Gu Yizhong walked on the edge of the knife. Finally, he found the witness Lian Qiangbao who was pretending to be the New Fourth Army to save him. Lian Qiangbao immediately confessed to save his life and admitted that he was an agent of No. 90 and was criticized by Zhou Zhifei.Disguised as the New Fourth Army to deceive Gu Yizhong.Gu Yizhong asked Lian Qiangbao to leave the written evidence.Xiao Ruotong found Haimo, and Haimo promised her that he would tell her any news about Gu Yizhong.Gu Yizhong had personal and physical evidence and tried to establish contact with the organization. He used Haimo to contact Xiao Ruotong and finalized the meeting place.But Zhou Zhifei, who was all-pervasive, had already laid an ambush in advance and surrounded Xiao Ruotong and other Communist Party members who came to join forces.In the melee, the only witness Lian Qiangbao was shot dead. In order to recover Liu Qiangbao's lost confession, Gu Yizhong rushed into the hail of bullets regardless of the danger, but was shot by Zhou Zhifei...