Season 3, Episode 7, "Back Burners"

WARNING: SPOILERS AHEAD!  Omar starts doubting his stances after getting chewed out by Bunk and does the magic trick of making Dozerman's gun reappear. Cutty, instead of mowing down rival gangsters, temporarily puts his heart and soul into mowing down blades of grass in an effort to leave the Barksdale mentality behind for good. Stringer tries to take advantage of the free zones and encourages Bodie to set up shop. McNulty screws over Daniels to get the case focused back on Stringer. Avon is lulled into a false sense of security, thinking that Marlo has retreated away from the war. Bubbles witnesses what a true hellscape Hamsterdam can be and quickly realizes his old friend Johnny might be beyond saving. Carcetti again is up to some shady maneuvering, playing Burell and Royce against each other as he tries to bring attention to the issue of state witnesses getting murdered. Herc, the useful idiot does a double-take when he sees that Avon is free and riding around.