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For the fifth and final season of this groundbreaking urban drama, series creator David Simon returns to his old stomping grounds at the Baltimore Sun, where he worked for many years as a crime reporter, to examine the media's role in modern society. This fictionalized version of what was once a newspaper of record is experiencing tough economic times, precipitating layoffs and a hollow mantra from management to "do more with less." These marching orders are met with derision by Gus Haynes (Clark Johnson), an old-school City Desk editor who encourages eager young journalists such as Alma Gutierrez (Michelle Paress) to hone their craft. The cutbacks at the Sun mirror those at City Hall, where Mayor Carcetti (Aidan Gillen) -- who's too busy angling for a gubernatorial run and convicting corrupt politico Clay Davis (Isiah Whitlock Jr.) to care-slashes the police budget to save money. But the decimation of the department's morale and matériel is too much for Jimmy McNulty (Dominic West). The maverick detective, who is not only back in Homicide but regressing to his tomcatting ways, fabricates a grisly crime that catches the eye of self-serving Sun reporter Scott Templeton (Tom McCarthy). And although his sensational articles about a rampaging serial killer are met with skepticism by Haynes, they're championed by his prize-hungry bosses. McNulty's scheme doesn't sit well with his partner Bunk (Wendell Pierce), but is embraced by Det. Freamon (Clarke Peters) if the means justify the restoration of funding to pursue drug lord Marlo Stanfield (Jamie Hector). Free of law-enforcement scrutiny, Marlo shields himself with onetime Barksdale attorney Maurice Levy (Michael Kostroff) on a quest to rule the entire city's drug trade, and tempts fate by luring stickup artist Omar (Michael K. Williams) back to town to settle an old score. Meanwhile, former addict Bubbles (Andre Royo) struggles to stay clean, but finds it hard to face his demons at Narcotics Anonymous meetings.

David Simon's masterful social commentary went back to school, quite literally, in the fourth season, which focuses on Baltimore's crumbling education system. A relevant link to its first three seasons is supplied by Roland "Prez" Pryzbylewski (Jim True-Frost), who left the police department to become a teacher at Edward Tilghman Middle School, a hardscrabble institution on life support that services a low-income, drug-infested neighborhood. (Incidentally, Prez's career path is similar to one of the series' producers, Ed Burns). His eighth-grade math class includes a close-knit quartet of friends -- Randy Wagstaff (Maestro Harrell), Michael Lee (Tristan Wilds), Duquan "Dukie" Weems (Jermaine Crawford) and Namond Brice (Julito McCullum). The wisecracking Brice is ignominiously selected to be part of a university experiment studying at-risk kids, which counts a former police commander, Bunny Colvin (Robert Wisdom), as a consultant. Out on the corners, Marlo Stanfield (Jamie Hector) strengthens his grip on the city's West Side narcotics trade once dominated by the Barksdale gang, and with his cold-blooded lieutenants, Chris (Gbenga Akinnagbe) and Snoop (Felicia Pearson), devises an ingenious method to hide the collateral damage of his ascent from the law. This sleight-of-hand bedevils detectives Freamon (Clarke Peters), Greggs (Sonja Sohn) and Bunk (Wendell Pierce). The trio are flummoxed by the lack of victims that would surely coincide with Marlo's ever-widening domain, a savage power grab that also threatens the relative peace of the New Day Co-Op under East Side pooh-bah Proposition Joe (Robert F. Chew). Meanwhile, the Democratic primary in the city's mayoral campaign pits the entrenched African-American incumbent, Clarence Royce (Glynn Turman), against Councilman Tommy Carcetti (Aidan Gillen), a scrappy politico with a savvy campaign manager in Norman Wilson (Reg E. Cathey), but a long shot to become Charm City's first white chief executive in years.