Cheng is a senior police inspector. So this Cheng has been planning for years and is preparing to launch an operation to nab a notorious criminal in the country. However, due to some unfortunate incident, he will not be able to participate in the operation when it is launched. However, his comrades leave for the mission without him. But the operation did not go as they had hoped.
After years of planning, a third party assaults a criminal, and a third party assaults the police. Many police officers who are subjected to an unexpected attack die in this attack. Among them is a friend of Cheng’s. So Cheng is then tasked with finding out who this group is. So there are various obstacles to achieve what Cheng expects. Especially from his superiors as well.