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.
The streets of Baltimore as a microcosm of the US's war on drugs, and of US urban decay in general.
Seen not only through the eyes of a few policemen and drug gang members but also the people who influence and inhabit their world - politicians, the media, drug addicts and everyday citizens.