731 brought all the Chinese to the experimental site, and the bombers dropped biological and chemical weapons bombs.After the bomb exploded, Chinese people escaped from prison one after another. The process was extremely thrilling. They were soon discovered by the guards. The guards shot and chased them, killing many people.Lao Qian and others were also outside to provide support and opened fire with the guards.
Song Zhuowen and the people from the Secret Service also came to the experimental site. They received orders to kill all survivors.With the help of Zhuo Wen, Song Zhuowu escaped, but Tian Xiaojiang died.
After Song Zhuowen returned to the Secret Service Department, he started to have a fever and told Guan Xue the cause of the disease. Guan Xue was shocked and sent Song Zhuowen to the hospital.But the Japanese said that Song Zhuowen was just a Chinese and would not give him an antidote.
Song Zhuowen said that he would be able to trace the whereabouts of the fugitive immediately. After hearing this, Unit 731 brought medicine to Zhuowen to treat his illness.Xie Yue was threatened at school. A classmate named Lu Jianshe followed Xie Yue, discovered Xie Yue's secret, and used it to blackmail Xie Yue.