Michael Potts

The wire begins to yield information about the Barksdale organisation, though finding links to the top proves elusive. Meanwhile, Stringer and Avon reminisce about how far they've come, with each harbouring plans for the future.

A reticent Avon readies his troops for a seemingly endless war against Marlo. Meanwhile, as the detail works towards the top rungs of the Barksdale organisation, McNulty reassesses his pursuit of Stringer Bell.

Brother Mouzone returns to Baltimore on a mission of revenge and casts a wide net in his search for Omar, who has his own plan for vengeance. Elsewhere, Colvin puts off a reporter inquiring about Amsterdam, whilst Burrell delivers news to City Hall.

In order to gain the Pink Panthers' trust, Neal must work with a dangerous enemy from his past to get a valuable artefact; Peter and Elizabeth have a difficult time keeping their secret.

An unarmed black man is shot during the pursuit of a suspect, raising racial tensions; Barba must indict the three officers involved -- who claim they followed procedure.

An investigation into the sexual exploitation of Catholic schoolgirls results in charges against judges, legislators, DAs and members of the police department.