McNulty and Prez turn up in the wrong alley; Cutty finds help; Bubbles is wired up; Pearlman and Daniels confront a cell-phone company.
McNulty and Greggs embark on a road trip; Carcetti confronts a hurdle; Marlo appears to take the bait.
Herc discovers a blast from the past; Omar grapples with guilt; Bunk receives a gift-wrapped surprise; McNulty tracks Terri to Washington.
Sgt. Carver faces discontent of unpaid officers; Mayor Carcetti struggles with keeping a campaign promise; Proposition Joe and others meet to discuss dividing drug frontiers across East Baltimore's county line.
Avon readies his troops for a war against Marlo; the detail works toward the top rungs of the Barksdale organization; McNulty reassesses his pursuit of Stringer Bell.
