Episode 5 recap: Chen Ke Hai returned to Shanghai.

Chen Ke Hai arrived in Shanghai and met Fang Li. He asked Fang Li about the assassination of Zhou Bing De back then. Fang Li explained that the operation's plan was leaked, leading to an ambush, and Shen Qiuping sacrificed herself on the spot. Instructor Jin, suspicious of Chen Ke Hai's identity, captured a woman and interrogated her, hoping to gather valuable information from her. However, the information she provided held no value for Instructor Jin. Fang Li promised Chen Ke Hai that he would make him the second prominent figure in Shanghai.

Fang Li and Li Tang followed the clues and arrived at a casino to find Yuan Qing Yun. When they saw the person in charge, his expression changed, and he called him the King of Hell. Fang Li and Li Tang still managed to meet Yuan Qing Yun and entered his office without beating around the bush. They demanded that he deliver the child to Unit 76 within two days, and they also requested that the human trafficker be killed, with the body taken away that day. Fang Li made it clear that there was no room for refusal, but Yuan Qing Yun wasn't buying it, as he had influential connections as well. Fang Li urged him to look out the window and see the Japanese military police in two cars downstairs. Yuan Qing Yun refused to comply with Fang Li's demands and had no intention of letting him leave. However, Fang Li was prepared and was not intimidated by his show of force.

At that moment, a person entered carrying a bottle of alcohol, and Fang Li and Li Tang's expressions changed upon seeing his face. Yuan Qing Yun claimed that this person was his pet dog and then handed him a gun, instructing him to kill Fang Li. This person was none other than Chen Ke Hai. Instead of attacking Fang Li and Li Tang, Chen Ke Hai aimed his gun at Yuan Qing Yun. Taking advantage of the situation, Fang Li subdued Yuan Qing Yun's subordinates, and then swiftly killed Yuan Qing Yun.

Japanese soldiers couldn't tolerate the chaos and rushed in to clear the scene, killing everyone inside. Chen Ke Hai revealed that he knew the whereabouts of the child and pleaded with them not to harm innocent people. Chen Ke Hai was knocked unconscious, and after Fang Li and the others explained everything, they took Chen Ke Hai to the hospital. Several days later, Chen Ke Hai still hadn't woken up, so Fang Li specially prepared several boxes of chestnut cakes to try to entice him awake. As soon as they arrived at the hospital, Chen Ke Hai regained consciousness. Chen Ke Hai and Fang Li silently ate the chestnut cakes, and finally, Chen Ke Hai spoke, asking about the truth from three years ago. Three years ago, someone leaked the operational plan, and subsequently, Shen Qiu Ping was arrested and sacrificed. Chen Ke Hai was filled with grief, and as for Fang Li's betrayal, he didn't want to say much. Everyone has their own way of living. That bullet didn't take his life back then, and after searching for them for a long time without any news, he joined the frontlines. Six months ago, he got injured in the leg and was saved by Yuan Qing Yun.

Fang Li arranged a place for Chen Ke Hai to stay and also brought Chen Shu back. The house they stayed in was the same one that belonged to Chen Ke Hai's family. Instructor Jin secretly investigated Chen Ke Hai's background but found that Hua Jie, a person from the gambling den, knew nothing.

Chen Ke Hai mentioned that he would write to Fang Li about the child and asked him to investigate each one. However, Fang Li had no interest in discussing work. He was happy that Chen Ke Hai was still alive and expressed his desire to make him the second prominent figure in Shanghai. Fang Li passed out drunk, and Chen Ke Hai picked up his coat but did not disturb anything inside it. He draped the coat over Fang Li. Acting as if he was heavily intoxicated, Fang Li left the place. Instructor Jin didn't find any suspicious points, but Fang Li remained concerned.

The next day, Fang Li took Instructor Jin to pick up Chen Ke Hai, claiming that he had found him a new job. Fang Li brought him to meet Li Shi Qun, who offered him a position at the Special Operations Headquarters. However, Chen Ke Hai declined the offer. Fang Li urgently tried to persuade Chen Ke Hai, explaining that he didn't have reliable subordinates at No. 76, and Chen Ke Hai was the only person he could trust. Li Shi Qun decided to let Chen Ke Hai follow Fang Li for the time being. Fang Li stated that he had just arrived and wanted to achieve something, and he had decided to promote Chen Ke Hai within a certain period of time.

Fang Li took Chen Ke Hai to the interrogation room and instructed him to kill the unyielding communists. Chen Ke Hai pulled the trigger, but the gun was empty. Fang Li was excited and explained that it was just a show for the people below. He truly believed in Chen Ke Hai's loyalty. Fang Li mentioned a director named Xing Hanzhu and revealed that Chen Ke Hai had encountered him. It was on that night on Xiafei Road when Shen Qiuping led the team to kill him. Fang Li took Chen Ke Hai to Shen Qiuping's grave, where Chen Ke Hai felt deep sorrow and dismissed everyone around him. He had taken good care of the pocket watch that Shen Qiuping had given him.

Chen Ke Hai immediately reported for duty, and Fang Li accompanied him in everything, persistently pushing him to achieve success as soon as possible. This time, the interrogation took place in the morgue.