A mysterious man comes to see old duan before the execution of mouse. He is late because he went to buy some things. The biggest drug lord has been brought to justice. It is time for uncle boyang to meet old hei, although he is too ashamed to look at his face. Before his mother died, she told him to look after his brother. When he was young, she held his hands and said that he was the only family that was left to them. He went to jail and his brother looked after him. The police have arrived at the scene of the attack and confirm that the prison van was attacked. The attackers also paid heavy price. they are not sure who the attacker was, but they are certain that all of the police and drug dealers are dead. They are also certain that one of the prisoners is missing. they must conduct a citywide searching in order to find him. Uncle boyang tells zhen to go get 70 thousand for mouse.