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.

Сезоны

Сезон	Серий	Release date	Rating
Сезон 1 On the drug-infested streets of West Baltimore, there are good guys and there are bad guys. Sometimes you need more than a badge to tell them apart. Season 1 follows a single sprawling drug and murder investigation in Baltimore — one that culminates in a complex series of dangerous wiretaps and s…	13	2002-06-02	8.1
Сезон 2 McNulty's on harbor patrol. Daniels is in the police-archives dungeon. Prez is chafing in the suburbs. Greggs has a desk job. The detail may be on ice, but corruption marches on . . . and a horrific discovery is about to turn the Baltimore shipping port inside out. Setting up in the wake of the f…	12	2003-06-01	7.9
Сезон 3 The heat is on in Baltimore. The drug war is being lost, bodies are piling up, and a desperate mayor wants the tide turned before the election. But the police department hasn't got any answers. Wiretaps haven’t worked. Neither have stakeouts or street busts. With the demolition of the Franklin Te…	12	2004-09-19	8.2
Сезон 4 In the projects. On the docks. In City Hall. And now, in the schools. The places and faces change, but the game remains the same. A new story begins. This year, while expanding on storylines introduced in previous seasons — including the new vocations of several characters, the rise of a new drug…	13	2006-09-10	8.1
Сезон 5 In the projects. On the docks. In City Hall. In the schools. And now, in the media. The places and faces change, but the game remains the same. In the fifth — and final — season, the series expands its focus into the media — specifically the role of newspapers in big-city bureaucracy — as it foll…	10	2008-01-06	8.2