Bai Hui stole the data from Chu Huaiqiu's office according to Ge Yun's order. Ge Yun asked her to take the data back to Taiwan and hand it over to Kou Xuesong. Bai Hui wanted to leave with Bai Minghan. Before leaving, Ge Yun gave her a A bottle of barbiturate, the drug that poisoned Lu Cheng.
Bai Hui lied that He Xiwen was ill to trick Ji Danyang out, and injected Ji Danyang with an anesthetic when he was not prepared. Ding Jie has been following Li Qiuchen. Li Qiuchen left in a hurry after seeing Bai Minghan. Ding Jie blocked Li Qiuchen in an alley and wanted to take him back for investigation. Li Qiuchen resisted desperately and escaped while Ding Jie was not paying attention.
Lao Jiang found out that Miao Huilan once worked as a servant in a family named Zhou. Later, Miss Zhou disappeared. Moreover, this lady was proficient in medicine and loved music. Zhang Yan suspected that Miss Zhou was the lurking Snow Wolf. The forensic doctor found the composition of barbiturates in Lu Cheng's blood, and Zhang Yan sent people to follow this clue to continue the investigation.
Pang Hongmei, Ding Jie and Chen Dongsheng found out that the earthworm was Wu Rui and the flying fox was Bai Hui based on the staff code. The police also found a report letter written by Lu Cheng before his death. Chen Dongsheng went to the hospital in person to arrest Bai Hui and learned from Ge Yun. Bai Hui committed suicide, and Zhang Ling escorted her back to the factory hospital in an ambulance. Pang Hongmei realized that the situation was not good, and immediately rushed to the expert building to find Chu Huaiqiu, and found that Chu Huaiqiu's camera containing all the water droplet project data had been transferred.
Zhang Ling used an ambulance to escort Bai Hui and the unconscious Ji Danyang. Liu Simao blocked their way while repairing a car halfway, and Bai Hu silenced Zhang Ling with poison. Ji Danyang finally regained consciousness. Bai Hui wanted to take him to Taiwan, but Ji Danyang refused. Bai Hui admitted that she added a 1 on Ji Danyang's calculation paper. Ji Danyang was so angry that he gritted his teeth when he learned the truth.
Zhang Yan sent Pang Hongmei to take people to Bai's house to catch Bai Hui. They found that the house was empty and there was a box on the table, which contained Bai Minghan's identity information. Pang Hongmei found a note in the box that said "Three Tiao Gorge". She knew this was left by Bai Minghan, and immediately led people to Santiao Gorge.
Bai Minghan came to Santiao Gorge. Bai Hui had been waiting for a long time. She wanted to take Bai Minghan to Taiwan and admitted that she was the only surviving student of the Nanshan Youth Class. Bai Minghan realized that Kou Xuesong had taken Bai Hui away, and he had to tell Kou Xuesong was the real culprit who killed Bai Hui's father. Bai Hui didn't believe it at all. Kou Xuesong said that her father was killed by the Communist Party. Bai Minghan briefly told what happened. Bai Hui could no longer look back. She wanted to go to Taiwan to find Kou Xuesong to find out. Bai Minghan advised her to go back and not be a bereaved dog. Bai Hui didn't listen at all. Bai Minghan slapped her in anger. Bai Hui said He was forced to commit suicide with poison pills made by Bai Minghan himself.
Liu Simao came with Ji Danyang in custody. Bai Minghan persuaded Bai Hui to take Ji Danyang back to Lumen. Bai Hui was angry and wanted to die with them. Li Qiuchen came later. He admitted that he was Lin Ranhai and the commander-in-chief of this operation. Li Qiuchen had been killed by him long ago. Zhang Yan found a letter in the box left by Bai Minghan. It was left by Pang Shizhao. Pang Shizhao asked Bai Minghan to report to the People's Liberation Army to rescue the arrested people detained in Xiaohuilou. Unfortunately, Pang Shizhao died before the letter was sent. , Bai Minghan is the Kuomintang agent Ghost Owl, but he has been helping the Communist Party.
Pang Hongmei and Ding Jie went to Santiao Gorge and followed the marks left by Bai Minghan along the way. Zhang Yan sent people to look for the cameras of Ji Danyang and Chu Huaiqiu. Chu Huaiqiu was going to report to Beijing tomorrow. Zhang Yan vowed to get the cameras back tomorrow. Li Qiuchen took Bai Hui, Bai Minghan, Ji Danyang and Liu Simao to a cave, where the special agent in charge, Mu Sen, was waiting for them. Mu Sen was rude to Bai Minghan and Ji Danyang, and Bai Hui gave him a hard lesson.
Mu Sen and Li Qiuchen discussed going to the ferry at four o'clock tomorrow. Musen was worried about being exposed due to the large number of people, so he suggested killing Ji Danyang and Bai Minghan. Ji Danyang persuaded Bai Hui to return the camera. Bai Hui could not go back. She had experienced a life that Ji Danyang could not imagine. She just wanted to end it all as soon as possible and take Ji Danyang and Bai Minghan to Taiwan to start a new life.
Bai Minghan saw that Mu Sen and Li Qiuchen wanted to silence them when they boarded the boat, so he told Liu Simao about it. Liu Simao didn't believe it at all. Bai Minghan remembered that there was only one small boat at Taohua Ferry, which could only hold four or five people.