Lin Huajun is Zheng Tianting's best student. If she doesn't go to Changsha, he will feel very sorry. He told Lin Huajun to remember his words, don't give up studying. This may be the last time they are in Tsinghua University. Someone suggested to take pictures, and Lin Huajun volunteered to take pictures for everyone. As the photographer, Lin Huajun did not take pictures with everyone. Ye Runming went to Lin's house, but before Lin Huajun came back, Ye Runming promised Lin's mother that he would take good care of Lin Huajun. After Lin Huajun came back, Ye Runming talked with her and knew the real reason why she didn't want to continue studying. She felt that the purpose of her mother's education for herself was to make her worthy of a better family, and the purpose of letting her go to Changsha was to better catch Ye Runming.
Ye Runming didn't say much, but he hoped that Lin Huajun could figure out what she wanted. Tomorrow they would gather at the Liuguo Hotel and set off. He would wait for Lin Huajun until the last moment. Master Yan told the Japanese military officer that the professors and students were going to flee to Changsha, so the Japanese army ordered to set up checkpoints at various traffic fortresses in Peiping to stop all the students in Peking University. Cheng Jiawen made a decision, his parents were here, and he didn't plan to travel far. He didn't plan to go to the United States. He wanted to stay in Beiping to accompany his elders. And Fang Yuerong also decided to move south with the school to Changsha. Now that the decision was made, Cheng Daoxiang and his wife never interfered with the children's decision. Cheng Jiashu climbed up the tree again, and successfully made Lin Huajun make the final decision to move south with the school to Changsha with the aggressive method.
Fang Yuerong informed everyone to leave in fifteen minutes. Bi Yunxiao met Zhao Zhongyao on the road, and he told Professor Zhao Zhongyao about the Japanese army's raids on professors and students throughout the city, but Zhao Zhongyao tried to risk his life to go back to the campus to get 50 mg of radium. Radium is one of the most important elements in nuclear physics research, and he has kept it in the Tsinghua Physics Laboratory. Bi Yunxiao felt that Zhao Zhongyao's goal was too big when he went back, and the Japanese army didn't know him, so Bi Yunxiao could secretly go back to school to get radium. Zhao Zhongyao acquiesced to his plan and told him the location of the small fifty milligrams of radium. When she was about to leave, Mother Lin came with Lin Huajun. She handed over her daughter to Ye Runming, and left here without looking back.
Cheng Jiawen and Shuangxi send Cheng Jiashu to the airport, halfway Cheng Jiashu asks the driver, Lao Cui, to stop because of a stomachache. Cheng Jiawen knows that he is acting, and he does not stop him when he leaves secretly. The Japanese army set up checkpoints, but anyone with books in the box was not allowed to leave the city. The students were about to clash with the Japanese army, but Ye Runming stopped them. Pei Yuanzhi persuaded the students not to be impulsive. Afterwards, the Japanese army arrested some progressive youths and locked them in the basement of the First Hospital of Peking University. After Cheng Jiashu returned, he met Bi Yunxiao at the Liuguo Hotel. Before going to the Xiankelai Hotel to join him, he had to assist Bi Yunxiao with an important matter, but when he went home to steal the car keys, he was caught by the driver Lao Cui. Catch and shout like a thief.
Cheng Daoxiang and his wife were very surprised to see their youngest son who was supposed to be on the ship to the United States appear in their yard at this time, and Cheng Jiashu simply expressed his thoughts. Cheng Daoxiang was moved by his son's heartfelt words, and finally handed over the car keys to him and agreed to do what he wanted. In order to get out of the city better, Ye Runming and the others put away their student ID cards and replaced them with ordinary passes. Before leaving, Cheng Jiashu knelt farewell to his father. In the middle of the night, Cheng Jiashu and Bi Yunxiao sneaked into Tsinghua Garden and met Zhang Pingbo.