After years of running away avoiding her drug kingpin father and family, she returns to assume her position in the family. A mysterious woman appears claiming she is also a sister of the family. A prodigal daughter who came back to settle a score for something that has happened two decades ago.

Cantonese pop star Ronald Cheng stars as spoiled rich kid Dragon Lung, who spends his days idly loafing with his fellow teenaged trust-fund brats, Sue-hei (Sam Lee) and Gold (Tat-ming Cheung). When the trio's frustrated fathers force their sons to attend a police academy for some much-needed discipline (or else face the loss of their hefty inheritances), the would-be cadets bungle their way through boot camp in a series of madcap, gun-fueled hijinx.