Dark Blue was an action/drama television series which premiered on TNT on July 15, 2009, at 10 pm. It ended its run on September 15, 2010. The series is set in Los Angeles, California. It revolves around Carter Shaw, the leader of an undercover unit. He is an officer who has dedicated his life to taking down the worst criminals in L.A., and this dedication has cost him his marriage. 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.
A sting operation against a local crime lord crosses paths with an FBI investigation, forcing Carter and his team to work to bring him down with the help of FBI Special Agent Alex Rice. What starts our as a simple goal gets complicated after a close friend of Carter’s is caught in the crossfire putting Carter’s personal stake in the cast at odds with Alex’s professional agenda.
With Carter and his team now working with FBI Agent Alex Rice as part of a special LAPD/FBI task force, the team goes after a drug ring with connections to a Mexican Drug Cartel. As Ty infiltrates the high-end world of a local dealer, Dean follows the drug ring to the most unlikely of suspects – A beautiful art gallery owner.
In order to get closer to their ultimate mark, the head of a notorious Mexican drug cartel, Carter has to pose as a porn king looking to expand his business into pharmaceuticals. But the case has Dean in an ever-complicated relationship with Maria, the attractive art gallery owner and daughter of a drug dealer.
When the team infiltrates a local casino to investigate the disappearance and presumed murder of a law-school student with a gambling problem, the case has a negative effect on Ty who runs with his high-rolling cover a little too far. Meanwhile, Alex gives Jaimie a hard time over the risks she is willing to take with their target, a no-excuses loan shark.
In order to locate an infamous anti-government militia leader, the team stages a jail break for his younger brother in the hope that he’ll lead them to their target before he assassinates a prominent Federal Judge. Meanwhile, Ty’s extracurricular activities are starting to affect his job performance, just as Alex is preparing a report on the task force.
Jaimie poses as a junkie in order to infiltrate a dangerous crew of thieves who pose as DEA agents in order to steal from drug dealers. As Carter grows concerned about Jaimie’s eagerness to make the case, Ty and Dean are stuck with a loveable yet annoying informant who wants nothing more than to be a cop, just like them.
The team goes after a home invasion crew with Alex and Carter acting as the bait.
After a young black man is gunned down, evidence points to the possible corruption of a noted figure in the black community; Ty dates a woman with a connection to the shooting.
Carter, Dean and Jaimie go undercover to corner two drug-smuggling brothers who use a flower-import business as a cover for their activities. But things go awry when Homeland Security requests that the team keep the smuggling business open so they can trap a potential terrorist. Meanwhile, Dean asks Jaimie out on a proper date just; Ty has second thoughts about his impending divorce; and Carter for a major life change.
The team keeps trying to infiltrate the drug-smuggling ring in order to get to a terrorist. Meanwhile, Alex is offered a promotion in Miami and Ty keeps struggling with his divorce.