In which episode did Yu Xiaotong, the peace-making team, appear with a knife?

Episode 6. In the sixth episode of the TV series "Peace Persuasion Group", Zhang Dachuan, played by Yu Xiaotong, loves photography very much and takes many photos by himself. However, his father Zhang Feiyou, who is obsessed with letting his son take the law exam, decides to forcibly interfere with Zhang Dachuan's hobby and put Zhang Dachuan away. All the works were completely destroyed. In anger, Zhang Dachuan took a knife to seek an explanation for himself.