Episode 3 recap: The fishing boat case has been reopened for investigation.

Qí Wénjìng looked at Liú Kǎi by the side of the boat, and finally, thinking about the various domestic abuses her husband had inflicted upon her, in a fit of anger, she pushed Liú Kǎi into the sea, but this scene was witnessed by everyone. Wáng Guìpíng told Qí Wénjìng not to worry, but Qí Wénjìng was actually very afraid because Liú Kǎi had been pressuring her to have a son for him. Níu Gēng continued to question Lín Yǔ and the others about what happened next. Through Lín Yǔ's recollection, he remembered that Wáng Guìpíng had been constantly threatening them, telling them not to wander around on the boat, and that the boat was still heading towards the island. He did it to avoid suspicion.

Wáng Guìpíng went to check on Lín Yǔ's progress in sailing the boat. Actually, Lín Yǔ didn't know how to sail, so he didn't know where they were exactly. He didn't know what happened to them afterward until Wáng Guìpíng killed someone himself, then he found out. Zhèng Duó asked Qí Wénjìng what her daughter's name was. In fact, Zhèng Duó wanted to find a way to go back.

Now, what they need to do is to control the hijackers. Qí Wénjìng was very worried that she had killed someone, but Zhèng Duó kept comforting her and said that no one would talk about her killing her husband. Originally, Zhèng Duó had planned to capture evidence of Wáng Guìpíng, but because the camera made a sound, Wáng Guìpíng sensed that something was wrong. In order to protect himself, Zhèng Duó pushed Hú Bái in front of Wáng Guìpíng, and Wáng Guìpíng killed him directly, then they threw the body into the sea.

Lín Yǔ also witnessed the whole process of Hú Bái being killed as a result. Later, Wáng Guìpíng told Lín Yǔ to continue sailing the boat, but it turned out that Lín Yǔ didn't know how to sail. Just then, Wáng Guìpíng saw the family photo on Lín Yǔ's necklace and remembered that he still had a son. In the struggle that followed, Wáng Guìpíng's money fell to the ground, and his emotions became very intense.

Zhèng Duó didn't expect that Wáng Guìpíng had so much money in his pocket. Next, Wáng Guìpíng didn't let Lín Yǔ sail the boat anymore. Qí Wénjìng became very agitated, and Zhèng Duó was thinking about how to kill Wáng Guìpíng. Only by doing so could they survive. Zhèng Duó started to instigate Lín Yǔ and Qí Wénjìng. At first, Lín Yǔ didn't want to kill anyone, but now they could only stay alive by killing Wáng Guìpíng.

Taking advantage of the night, they thought Wáng Guìpíng was asleep, but instead of sleeping, he took out a knife to resist. During the struggle, the four of them ended up on the deck, and Zhèng Duó, Lín Yǔ, and Qí Wénjìng successfully killed Wáng Guìpíng. Originally, they fought over money, but Wáng Guìpíng was thrown into the sea. Now, there were only the three of them left on the entire boat.

Lin Yu told the prosecutor that the three of them had fabricated the story together in order to escape punishment. Zheng Duo even made Qi Wenjing take the blame, and Qi Wenjing agreed. However, Zheng Duo came up with a more perfect narrative, and although Lin Yu initially agreed, he was very scared and felt like he kept dreaming about Wang Guiping, so he had to admit the truth. Since none of them knew how to sail and the boat had no navigation system, it eventually drifted to a small island. They found some fresh water, but it ran out after a few days, and they continued drifting on the boat until they encountered a search and rescue ship, which finally rescued them.

Niu Geng instructed Qi Heng to continue the investigation, while Marathon planned to go for a run after work to take a break. Finally, the case was considered solved. During his run, Marathon ran into Qi Heng, who actually wanted Marathon to help him pick up his younger brother and asked for his assistance in devising a plan. Marathon agreed to help.

Zheng Duo's lawyer stated that even if there was a change in testimony now, it wouldn't matter. However, Luo Huaigong requested the lawyer to aim for an acquittal, showing that he was very concerned about Zheng Duo. Marathon picked up Guo Lun, who had just been released from prison, and took him to Qi Heng's home. Marathon also prepared many daily necessities for Guo Lun, but Guo Lun complained that Marathon was too talkative.

Guo Lun looked at everything in his home, which was still so familiar. Marathon even cooked a pot of soup for Guo Lun, and at that moment, Qi Heng returned. Qi Heng was very enthusiastic upon seeing Guo Lun, but Guo Lun didn't want to pay him any attention. Later, Qi Heng cooked a meal for them. During the meal, Guo Lun was quite picky, but Marathon tried to ease the tension between the two. Qi Heng also mentioned his sister, which greatly agitated Guo Lun. Guo Lun believed that Qi Heng had been abusive towards his sister, which led to her leaving in anger.

Marathon quickly intervened to mediate the situation.