Sai Gau (Max Zhang) is a violent police detective who narrowly avoided jail-time for the involuntary manslaughter of a corrupt colleague, whose daughter (Cecilia So) he now supports financially, out of a sense of duty rather than guilt. With an empty personal life, a single-minded approach to his job, a disapproving, pencil-pushing boss (Lam Ka Tung) and a debt-ridden partner on the cusp of an early retirement (Wu Yue), he is dead set on bringing Shing (Shawn Yue), a cruel gold smuggler, to justice. Shing has just gotten rid of his mentor (Tao Bo) and his rival (Derek Tsang) ; he’s now aiming to get to a $50 million stash of gold hidden in an underwater cache in the high seas (thus out of police jurisdiction), and belonging to Triad boss Blackie (Yasuaki Kurata). The violent cop and the brutal smuggler are on a collision course.

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