Robert Poletick

Selina orders a "partial" full disclosure of all office correspondence; Selina threatens to fire a key staffer.

Selina courts voters at a book signing in Iowa; Selina and her staff hear a rumour that could impact the next election.

The Thick of It's Chris Addison directs the season premiere in which President Selina and her hapless team prep for her Joint Session speech.

As McNulty and the detail continue to stake out Marlo's crew, newly elected Mayor Carcetti is finding he is stuck between keeping his promises on education and his promises on law and order.

Mystified by Omar's disappearance, Marlo and Chris step up their efforts to locate their nemesis. Meanwhile, Carcetti sets out to establish himself as a champion for the homeless. Freamon and McNulty press for new surveillance equipment only to come up short and Pearlman discovers new clues pointing to corruption at City Hall.

Marlo forges an alliance with a drug contact who shows him a new communications trick and McNulty's case gets attention from the press. Meanwhile, Dukie turns to Cutty and Michael to hone his self-defence skills and Omar shows patience as Marlo throws out his bait.