The Strike Team's new strategy is to play by the rules in order to keep the I.A.D. from sniffing around the money they stole from the Armenian money train. Unfortunately, their plan is abruptly interrupted when a routine drug bust lands them right in the middle of a high-poweredballoon running ring. Soon they find themselves racing to disarm two rival gangs before a race war breaks out. When an old ally turns out to be the new leader of the One-Niners, they use him to set up a stingballoon buy. Tension among Vic and the Strike Team increases when Dutch and Claudette begin investigating the cuddle of two Armenian gangsters tied to the money train robbery. Meanwhile, with her promotion to Captain on the horizon, Claudette faces a cruel reality when David decides to not only stay in his position but also implement some of her ideas to help clean up Farmington. After his blanket party in Season Two, Julian's manhood and ability as a cop are in question and Vic urges him to take action to get some respect back from the barn. Danny makes a plea to Aceveda to get her job back and Shane deals with the pressures of keeping his new girlfriend happy without interfering with his job.
The Shield breaks the conventional formula of the cop genre. It plays out in a tough, morally ambiguous world in which the line between good and bad is crossed ever day. The series focuses on the tension between a group of corrupt but effective cops and a captain torn between bringing them down and advancing his own political ambitions.
The Shield stars rogue cop "Det. Vic Mackey", leader of the elite Strike Team unit, who is effective at eliminating crime but who operates under his own set of rules. "Captain David Aceveda", the young precinct head who doesn't like Mackey's tactics and wants to bust him off the force. And "Det. Claudette Wyms", a veteran detective who understands Mackey and knows how to play both sides of the fence.