Uncle Boyang tells the story of how duan discovered the identity of the drug dealer. Ten years ago, duan and mouse accidentally lit a curtain in the hall and set it on fire. After a month of silence, heisan returns to the scene of the crime. He tells duan that duan told him to go to the fight, but when he got there, he found it pitch black. He asks why duan is taking the guilt on himself, and duan tells him that he is trying to protect the boxer by admitting everything. Since then, duisan has gained his trust and has been promoted to the vice manager position at the vip hall. He explains that he has been watching all of his actions and calls for a long time, but he does not dare to make a call. He says that mouse must be planning a huge operation, and that mouse himself will lead the team in this time. The time is 2 a.m. the next day, and the location is a crow dock, so they can capture them once, but not for all. Then they will have to buy 25 liters of the liquid stuff. They still have 40 minutes to go. The fish have already left the car, and they are punctual.