A competitive marksman named Ken Yip crosses paths with police inspector Jerry Chong during a high-stakes shooting competition. After the event, Ken witnesses an armed robbery and uses his expert marksmanship to thwart the criminals. Although his actions save lives, they result in the deaths of several robbers. Due to the contentious nature of vigilantism, Ken faces legal scrutiny. Inspector Chong, who once admired Ken's shooting skills, finds himself entangled in the investigation, questioning the morality and legality of Ken's actions. This complex case forces both men to navigate the thin line between heroism and legality, setting the stage for a deeper exploration of justice and culpability.

As the investigation unfolds, unexpected twists and growing suspicions disrupt the lives of both Ken and Chong. Their professional and personal boundaries blur, leading to a series of confrontations that test their beliefs and ethics. Ken's involvement in the robbery case takes unforeseen turns, dragging him deeper into a web of deception and danger. Meanwhile, Inspector Chong must confront his own demons while trying to unravel the truth behind the events. The story builds toward an intense and gripping climax, where decisions must be made, loyalties are tested, and the line between right and wrong becomes increasingly obscured.