Police officer Mike is a rich kid who loves to show off and spends his own money extravagantly on investigations. His colleagues, annoyed by his antics, dub him "Flashy Policeman." One day, Mike is suspended after a conflict arises between his ex-girlfriend Lisa and mainland police officer Lin Heng.
Lin Heng happens to be the younger brother of recently murdered billionaire Lin Yong. He asks Lisa, who used to be his brother's assistant, to continue managing the business. Lin Heng is also satisfied with club manager Ah Hong. Mike hopes Lin Heng will solve the case quickly so he can return to the mainland, so he spends lavishly to assist Lin Heng in his investigation.
Meanwhile, Mike's father goes bankrupt, and Mike finally becomes a true-blue policeman. With the help of their informant, Rat, the two begin searching for the suspected gang leader responsible for Lin Yong's death, Scorpion Yong. They are then informed that Rat has been killed, realizing too late that the person they met wasn't the real Rat—they've been misled.
At this time, Lisa and Ah Hong are accompanying a group of wealthy individuals on a yacht trip out at sea when pirates hijack the yacht and Ah Hong is shot, falling into the ocean. When the water police arrive, Lisa and the other wealthy passengers are nowhere to be found. It turns out they've been taken hostage in a wooden cabin on a floating raft. The clever Lisa manages to sneak a call for help to Mike. As Mike and Lin Heng arrive, it seems like the rescue is going smoothly until a masked man arrives on a speedboat and takes the hostages away. In order to save Lisa, the two become comrades-in-arms, engaging in a life-or-death battle with the masked man...