Dark Blue is an American crime drama television series that premiered on TNT on July 15, 2009 and ended its run on September 15, 2010.

[1] The series is set in Los Angeles and revolves around Carter Shaw (Dylan McDermott), the leader of an undercover unit.

His team includes Ty Curtis, a newlywed who struggles between his job and his new life; Dean Bendis, an officer who is so deep in his undercover role that his team is no longer sure which side he is on; and Jaimie Allen, a green patrol cop recruited into the undercover unit because of her dark past and criminal skills.

[6] Ty goes undercover to search for a gun trafficker, but nearly blows his cover by breaking a crucial rule and seeing his wife on her birthday.

A ruthless drug trafficker with a background as a lawyer proves a difficult target for the team, especially when the sting operation’s deadline gets pushed up.

Dean's increasingly personal relationship with the daughter of a local drug dealer puts the undercover operation at risk.

[36] Verne Gay of Newsday praised the series, saying "This is a solid and particularly well-produced cop show—and should be, with Jerry Bruckheimer topping the credits—although we take off points for extreme violence...";[37] he gave the show 83 out of 100.

The Philadelphia Inquirer's Jonathan Storm gave it 70 out of 100, saying "If you're looking for unencumbered tough-guy entertainment, you won't be disappointed.

"[38] Mary McNamara at the Los Angeles Times also gave the series a 70, saying "It's going to take more than an unshaven cheek and a few hollow coughs to make the character real, but Dark Blue's great supporting cast and high production values may buy its star enough time to disappear as effectively into his role as his undercover team disappears into theirs.