Zhu Huabiao (played by Andy Lau), who was originally a sergeant in the serious crime unit, was punished and transferred to the stormtroopers for beating his boss. He became the boss of McDull (played by Cheung Tat-ming), Apple (played by Li Qiong), Da Dan, and Fan Jiao (played by Jordan Chan), but Zhu Huabiao often had conflicts with Fan Jiao. At this time, the serious criminal professor and Xiao Niao successfully escaped from prison, and even wanted to shoot Interpol in the downtown area. Huabiao chased them hard regardless of the opposition of his superiors and colleagues, even though their group finally succeeded in capturing the professor. One day when they were on patrol, Huabiao received news that this group of criminals were going to the headquarters of Interpol to steal 90 million in stolen money. Huabiao was about to go, but they had their own mission, so Fan Jiao strongly opposed Huabiao's actions...