Told from the points of view of both the Baltimore homicide and narcotics detectives and their targets, the series captures a universe in which the national war on drugs has become a permanent, self-sustaining bureaucracy, and distinctions between good and evil are routinely obliterated.
"A lie ain't a side of a story. It's just a lie." - Terry Hanning
A shift in the police department sends Carver to a new location. Meanwhile, Carcetti is forced to put his political future in jeopardy, Haynes digs deeper into Templeton's work, and an important case has a breakthrough by Sydnor, while Fletcher continues working with Bubbles.