One day in May, the weather was already scorching hot. Boss and Echo received a new task—to help their former commander, nicknamed "General", to solve a tricky problem. Little did they know, they had stepped into a trap, fighting death amidst trust and betrayal. For justice and survival, they can only fight back!...

A violent explosion broke the tranquility of the bank. A group of gunmen drove away with the stolen money and the police who heard the news chased on the highway. A fierce exchange of fire was launched, and the car overturned and caught fire. The remaining gangsters abandoned their cars and fled frantically. The elite SWAT team who received the warning – the Black Panther SWAT team, rushed to the scene of the incident; on the other hand, a SWAT team member Jiang Miao learned that the mastermind behind the robbers turned out to be the murderer who killed his brother who was also a policeman. After subduing the gangster, Jiang Miao resolutely went to get to the hidden stronghold of the mastermind behind the gangster......