2. The Major Crimes Unit of Donghuan Public Security Bureau is celebrating the great victory of the "clean-up operation": a criminal suspect who has been on the run for many years has been arrested and brought to justice. Suddenly, I learned that an amazing bloody case had happened. A policeman was seriously injured by a gangster sneak attack, and his gun and bullets were taken away. The Public Security Bureau immediately sent a major crimes unit to solve the case, and the superior also sent Gao Lin, deputy director of criminal investigation, to supervise the case. Gao Lin will form a task force together with Hong Shunda, captain of the major crimes unit, and Xu Yi, a policeman transferred from the major crimes unit. These three people are classmates of the police academy, and they are inextricably linked in their lives. They overcame all kinds of misunderstandings in life and bravely fought criminals. After a lot of investigation, Xu Yi found that the father of the criminal Sun Zhijun had been arrested and imprisoned by his own father, and decided that this was his revenge. The three men and the task force immediately went all out to hunt down Sun. After many wits, he was finally besieged in Shan Ye. After a fierce gun battle, Mrding, a retired policeman, was shot and killed in an emergency to protect Xu Yi. Finally, Xu Yi personally killed Sun Zhijun and successfully cracked the case.