Baltimore's inner-city crime and drug scene, seen through the eyes of every part of the drug "food chain", politicians, police, drug dealers and users.
A demoted McNulty is sent to patrol the city docks, where he makes a grisly discovery. Strong language/violence/sex/flashing images. (S2, ep 1)
McNulty's curiosity leaves the department with more murders to probe, but the sinister perpetrator seems one step ahead. Strong language/violence. (S2, ep 2)
The team at the docks is beefed up thanks to a belligerent Valchek. In prison, Avon instigates a deadly plan. Strong language/mature themes/flashing images. (S2, ep 3)
Daniels convinces Burrell to assign a major case unit to the shady goings-on at the port. Dee distances himself from Avon. Strong language/sex. (S2, ep 4)
Desperate for cash and with little legitimate work at the docks, Nick and Ziggy are drawn deeper into The Greek's shady world. Strong language/mature themes. (S2, ep 5)
Omar makes a friend when he helps convict a member of Avon's gang. D'Angelo's behaviour leads Stringer to take action. Strong language/violence/sex/mature themes. (S2, ep 6)
Technological breakthroughs help the unit home in on Sobotka's dealings. A rival drug boss has a proposition for Stringer. Strong language/sex/mature themes. (S2, ep 7)
A paranoid Sobotka suspects he's being watched and McNulty, depressed and threatening to spiral out of control, is given a boost. Strong language/sex. (S2, ep 8)
A gang shoot-out has terrible repercussions when a child is caught in the crossfire. A sinister figure arrives in Baltimore. Strong language/violence/sex. (S2, ep 9)
The unit's work is threatened when the Greeks are alerted to the operation. Ziggy's life as a gangster takes a bloody turn. Strong language/violence. (S2, ep 10)
The detail carries out a series of raids, leading to a deadly call to action from The Greek. Stringer attempts to play Omar. Strong language/violence/mature themes. (S2, ep 11)
The second season of the epic crime drama comes to a close. Another gruesome discovery is made at the docks. Contains strong language. (S2, ep 12)