Zhang Dongsheng looks guilty as he is questioned by the police. The three kids decide to remind the murderer about what they know, and send a warning letter.
Father Zhu starts swimming with Chaoyang to make up for his lost father and son time; Zhu Chaoyang goes to Zhang Dongsheng's home to negotiate terms of peace.
Zhang Dongsheng, Yan Liang, and Zhu Chaoyang make a lucrative deal; Wang Yao and Zhu Yongping stumble into an unfortunate situation and violence ensues.