Edward Green

As Carcetti sees the good and bad of Colvin's 'free zone' experiment for himself, Stringer's feud with Omar comes to a head.

Avon readies his troops for a war against Marlo. Meanwhile, as the crew works towards the upper levels of the Barksdale organisation, McNulty has doubts about the path he's chosen for himself.

The mayor's plan for the police department hits the headlines, Marlo seeks Prop Joe's help and McNulty goes to the press.

A worried Omar calls in a favour, Carcetti seeks advice from an ex-mayor and Prez begins to make headway with his students.

Templeton receives a call from the serial killer as McNulty's web of lies spins further out of control. Meanwhile, Omar sends Marlo a message.

With Burrell's help, Daniels opens up the row houses and the reality of the city's drug trade hits the headlines. Season finale.