Dark Blue takes place in the underbelly of Los Angeles, where criminals roam free under the veil of night or hide in the shadows of day. Wandering in and out of this seedy world is routine for Lieutenant Carter Shaw (Golden Globe winner Dylan McDermott) and his special undercover task force. This team understands that to bring down a criminal, one must first get on their level. Carter’s team includes Ty Curtis (Omari Hardwick), a recently married cop who struggles to juggle real life and the relationships he has developed while undercover; Dean Bendis (Logan Marshall-Green), a fearless gunslinger whose activities make his team wonder which side he's actually on; and Jaimie Allen (Nicki Aycox), a green patrol cop recruited for her excellent lying ability, especially concerning her own past. Carter and his team know that being undercover may require cutting ties with those who mean the most. Faced with circumstances that strain the line between right and wrong, all that matters is loyalty.