Colvin tells the dealers about his new policies. Avon gets out of prison. Cutty using his old tricks again. McNulty finds out something about Stringer. Omar faces a major setback.
Frustrated in his grass-roots reform efforts, Colvin arms himself with intelligence from Daniels' detail and personally delivers a message to the next level of corner management. He tells them that it is now safe for them to sell and they have permission to do so. McNulty sees Stringer Bell's legitimate business dealings as a sign that he is now unreachable as a drug target. However, Gregg's surveilance soon proves otherwise as he catches Stringer in action. He also gains an interest in politics thanks to a new woman he discovered while attending a meeting as his sons' new school. Bubbles shakes the tree for Johnny one more time just to help out his old friend. Carcetti quietly seeks to fix the program for protecting state's witnesses after another one is killed. Omar struggles with dissension in the ranks; Stringer hard-sells his new business model to an under-whelmed Marlo. Cutty continues to slide back into the real world and finds it extremely difficult to digrest. He ends up doing the same things that got him in prison to start with, just to make end's meet as his gardening money is not paying for much. Avon finally gets out of prison and the detail has no idea about it. His crew ends up throwing a lavish party to welcome him home. ..