Detective Marty Kingston is a veteran undercover narcotics officer working in Detroit. After a brutal shootout that kills his partner, Marty is assigned to investigate the case with a new partner, Dan Sullivan, an up-and-coming detective transferred from the homicide division. Marty and Dan quickly realize they must navigate through a murky labyrinth of corruption and betrayal within their own department while trying to unmask the ruthless criminals responsible for the murder. The duo's investigation leads them to believe that the unseen enemy might be closer than they anticipated, forcing them to question the integrity of their fellow officers.

As Marty and Dan delve deeper into the case, they encounter conflicting loyalties and moral dilemmas, with each step shedding light on an intricate web of deception. The stakes grow higher as they follow a trail of evidence that opens up troubling revelations about the operations of Detroit's underground criminal world. Their bond as partners is tested as they face imminent dangers, including deadly confrontations and startling truths about those they trust. Racing against time, they are drawn into a vortex of violence and subterfuge, each of them wrestling with their own demons in a city rife with peril and fractured alliances.