Episode 19 recap: Tong Sheng gave up going north and decided to stay in Hong Kong to seek revenge.

The people Dang Xun Qi sent out reported back that a few workers led by the old Zhao went to the Qiming Bookstore, and when Wu Yaming heard about it, he guessed that this place was very likely a communication point for the communists. The Queen Bee directly gave Dang Xun Qi an order, requiring him to quickly find a boat to take Tong Jiang Nan and others away, but the problem was that Luo Guanying had died, and the new contact person had not yet appeared.

Soon, the secret agent reported to Dang Xun Qi again that the workers had gone to the Qiming Bookstore, and Dang Xun Qi told the other party to keep a close watch on the bookstore, while he immediately rushed over with people. Abing discovered the abnormality around the bookstore, but it was too late, as Dang Xun Qi had already arrived with people. In the ensuing chaos of the gunfight, Abing was shot and sacrificed himself to protect everyone.

The death of Luo Guanying was a mixed blessing for people like Zhou Yaming, because Luo Guanying was killed as a communist, which also meant that Su Xing would be firmly established as a secret police agent, making it very difficult for Tong Jiang Nan to turn the table on him. Zhang Shaomu brought the news of Luo Guanying's murder to Tong Jiang Nan, suspecting that Su Xing was the killer or the mastermind behind it.

As a result, Tong Sheng's hatred for Su Xing became even stronger, and she wanted to go find him in person to get the truth, but was obstructed by Zhang Shaomu. Zhang Shaomu felt that if she rashly went, it would be like a lamb entering the tiger's den, and Tong Jiang Nan also agreed with Zhang Shaomu's view, as he felt that Su Xing had already gone mad, and they were unarmed and unable to fight him.

Zhang Shaomu reminded Tong Jiang Nan not to wait any longer, and the top priority was to find a way to go north by themselves, and he happened to know a friend who was sailing overseas, perhaps he could give them a ride. Meanwhile, Lin Shi Man was shocked that Dang Xun Qi had actually killed to cover up, and was worried that the superiors would thoroughly investigate the matter, but Dang Xun Qi was not bothered, as he had framed everything on the communists.

On this side, the forensic examination of Luo Guanying's body confirmed that he was strangled to death and then staged as a suicide by hanging. Li Wenbo personally interrogated Abiao, but Abiao repeatedly denied killing anyone, even when Li Wenbo showed Dang Xun Qi's wanted notice, he still stubbornly refused to give in. The chief of the Hong Kong and British administration summoned Li Wenbo to the office for questioning, and even Li Wenbo didn't expect the newspaper to have published Luo Guanying's death news in advance, and the Hong Kong and British administration required him to publicly declare Luo Guanying's death as a suicide, from beginning to end there was no murder.

Afterwards, Li Wenbo went to see Tong Jiang Nan, reminding him to carefully consider what kind of person Luo Guanying might have been, and insisted that he was killed by his own people, and that only the Kuomintang could be so ruthless.

It's a pity that Li Wen Bo's warning to Tong Jiang Nan was completely useless, as Tong Jiang Nan still believed that Luo Guan Ying would risk his life to save himself, and thus must be a member of the Communist Party.

Su Xing came to the school gate and happened to meet Chen Xue Wei, so he entrusted her to deliver a note to Tong Sheng. Chen Xue Wei deliberately announced in front of Zhang Shao Mu that Tong Sheng's boyfriend had sent her a letter, in order to draw Zhang Shao Mu's attention, but Tong Sheng merely glanced at it and returned to her office without further comment.

Zhang Shao Mu came after her and told Tong Sheng not to meet him, but Tong Sheng still had a glimmer of hope in Su Xing, whether he was from the Nationalist Party or the Communist Party. After Tong Sheng left, Zhang Shao Mu secretly read the note Su Xing had given to Tong Sheng.

When he returned, Su Xing contacted his comrade Dong Fang, confirming that Luo Guan Ying was killed by A Biao, and the mastermind behind it was Dang Xun Qi, the boss of Chang He Trading Company. When Zhou Ya Ming heard this name, he suddenly recalled the news report he had seen a few days ago about an arms trade case, and Wang Da Long happened to identify Dang Xun Qi's photo, pointing out that he had taken agents to the shipyard to arrest people, proving that Dang Xun Qi was from the Nationalist Party.

The democratic activists held a secret meeting at Tong's house, discussing Luo Guan Ying's death and believing that the murderer must be someone who disguised themselves as a Communist Party liaison, as they had pointed the finger at Su Xing, especially since Su Xing had repeatedly tried to prevent them from boarding the ship to sail north, proving he was an agent without a doubt. Tong Jiang Nan told everyone that his student Zhang Shao Mu could get them a steamship, so they could then sail out of Hong Kong.

Su Xing made an appointment to meet Tong Sheng at a cafe in the harbor, and through the explosion and kidnapping incidents, he analyzed and explained his identity to her. Under Su Xing's narration, Tong Sheng's heart gradually wavered, but just then, the agents who had been lying in ambush in the cafe opened fire on the two of them. Su Xing protected Tong Sheng while fighting back, and in the end, one agent was killed and one was injured, allowing them to escape.

As soon as they left the cafe, they ran into Zhang Shao Mu. Su Xing asked Zhang Shao Mu to take Tong Sheng home, and Zhang Shao Mu still suspected Su Xing, believing that the people who ambushed him were definitely from the Communist Party. After learning the news, Tong Jiang Nan was particularly concerned about Tong Sheng's safety and questioned her about why she had met with Su Xing.

Zhang Shao Mu hurried forward to shield Tong Sheng, and Tong Jiang Nan could not continue to criticize her too much, but Tong Sheng refuted Tong Jiang Nan, saying that he should not rashly determine that Su Xing was from the Nationalist Party, as if he turned out to be from the Communist Party, he would be wrongly accused. This led to a disagreement between the father and daughter.