The Stanfield Organization continues to operate despite a year of surveillance by the Major Crimes Unit. Education budget deficits and ambitions to become Governor leave Mayor Carcetti forced to make funding cuts. His broken promises to the police department destroy morale and cause the closure of the Major Crimes Unit. Detective Jimmy McNulty is sent back to homicide and returns to his old habits of drinking and infidelity. Similar cutbacks in the Baltimore Sun newsroom make it increasingly difficult for city desk editor Gus Haynes to do his job but he is still able to break a major story linking city council president Nerese Campbell and drug dealer Fat-Face Rick. Bubbles is recovering from his heroin addiction but is struggling to come to terms with his role in Sherrod's death. Michael Lee continues to work as a Stanfield enforcer and provides a home for his younger brother and his friend Duquan "Dukie" Weems.