Miami is caught in the grip of a violent drug war when newly promoted detective Nick Mendoza is paired with veteran partner Khai Minh Dao to trace a narcotics supply chain from the streets to its source. As their investigation pushes into increasingly unofficial territory, the two detectives discover that corruption runs through both the criminal underworld and the ranks meant to fight it. What begins as routine police work steadily pulls Nick into a conflict where the line between cop and criminal blurs.