In the bustling city of Macau, a few years before the 1999 Handover to China, the plot revolves around the reunion of four gangsters who were once childhood friends. Two are sent by their boss, Boss Fay, to kill a former gang member, Wo, for attempting to leave the criminal life behind after getting married and having a child. On the other side, two are there to protect Wo. Their confrontation leads to a tentative standoff, with the group deciding to carry out one last heist together for Wo’s family's future, showcasing themes of loyalty, friendship, and the quest for redemption in a life of crime.

The heist plan involves an audacious attempt to rob a gold bullion dealer, but unexpected complications put their lives and the lives of their loved ones in grave danger. As they navigate through the challenges, internal conflicts and external threats from other gangsters and a persistent detective put their bonds to the test. The plot thickens as their actions inadvertently draw the attention of their underworld, making them navigate through a treacherous path that tests their loyalty and friendship against the backdrop of the criminal underworld of Macau. They are forced to confront the consequences of their life choices, setting the stage for a gripping narrative of action, loyalty, and morality in the face of imminent danger and potential redemption.