"The movie that began it all........." A reforming ex-gangster tries to reconcile with his estranged policeman brother, but the ties to his former gang are difficult to break.

"A criminal genius, who has only 14 days left in his life. A CID, who has the support of the entire police force. A psychological but fatal game between two men of super talent." Police inspector and excellent hostage negotiator Ho Sheung-Sang finds himself in over his head when he is pulled into a 72 hour game by a cancer suffering criminal out for vengeance on Hong Kong's organised crime...

Months after the events of the original film, Ming suspects a police superintendent as being a new mole for the triads, while years earlier, Yan embarks on his first mission.