In the series premiere, after an undercover FBI agent's body is dumped on the side of the road, all eyes turn toward Dean Bendis (series star Logan Marshall-Green), an undercover officer currently embedded with the gang believed to be responsible for the FBI agent's murder. Dean's boss, Carter, is determined to bring the gang leader down while also ensuring that Dean has not turned and switched loyalties. Carter sends in Ty Curtis (series star Omari Hardwick), who must leave his life as a newlywed to return to the seedy criminal world and get Dean out. Meanwhile, Carter recruits and trains the latest member of his team, Jaimie Allen (series star Nicki Aycox), a patrol cop who has successfully fabricated her entire past.

It's Melissa's (recurring guest star Meta Golding - "Criminal Minds," "Day Break", "CSI: Crime Scene Investigation") birthday, but Ty, her husband, is working undercover and isn't supposed to see her. Ty breaks with protocol and sneaks out of his hotel room to spend the night with her the evening before he's supposed to bring down a gun trafficker. Unfortunately, Ty is followed, leading the gun dealers to question whether or not he's on the level. In order to protect Ty's cover and save his life, Carter must now wrangle $100,000 -- in less than 12 hours.

A ruthless drug dealer with a background as a lawyer proves a difficult target for the team. Jaimie is on point for the case, which gives her fellow team members the chance to learn some bits and pieces about her real past. Working undercover, she quickly arranges a buy through the dealer's tester, a former pharmaceutical engineer desperate to get a new lease on life. But when the sting operation's deadline gets pushed up, it takes some quick thinking and legally questionable moves on Jaimie's part to make the arrest. Will she have what it takes?

Ty and Dean go after a major Korean gang, who do everything from drugs to counterfeiting. Their target is known as President Lee (guest star Byron Chung - "Lost"), an old-school mob boss who doesn't take lip from anyone. But the biggest problem may be between Ty and Dean, as they butt heads over almost every aspect of the case, including Ty's overly cautious attitude. Dean, conversely, throws caution to the wind.

Carter's unit races against the clock to save a kidnapped woman. With Ty posing as a gangbanger, Dean as a security guard and Jaimie as a potential victim, it's up to them to track down the woman's whereabouts. But the situation is not helped by the FBI's involvement in the case, dredging up a deeply personal grudge Carter has against the feds.

Carter and his team try to take down a major criminal ring that launders money through diamonds. As Ty tries to make progress with a club owner interested in pulling a diamond heist, Dean and Jaimie pose as a married couple in order to forge a connection with the biggest fence in the business. Meanwhile, Ty begins to second-guess the danger he faces on the job after his wife, Melissa (recurring guest star Meta Golding), tells him she wants to start a family.