"A man must have a code." - Bunk.

Tipped off by the wire, Greggs, Herc, Carver and Freamon make a bust, but the incident makes Avon and Stringer suspicious, leading them to close shop in the Pit. Meanwhile, Bunk and McNulty look for another witness in the Gant slaying and hunt a suspect known as 'Mr. Bird.'

"Come at the king, you best not miss." - Omar.

An unlikely source gives McNulty the tag of a car driven by Stringer Bell. Meanwhile, Greggs and Carver bust a congressional aide carrying dirty cash, but are forced to let him go. Omar earns his 'loose cannon' moniker.

"They're dead where it doesn't count." - Fletcher

Mayor Carcetti's police department plan is leaked. Marlo turns to Proposition Joe for help. Meanwhile, McNulty strikes up an unexpected ally -- Freamon.

"They don't teach it in law school." - Pearlman

After cooking up another scheme for the homeless case, McNulty and Lester become popular figures. Davis is set for his day in court by collecting the best legal assistance money can buy. Plus, Michael has brushes with the wrong side of the law, while Gus seeks help for an old story by going outside the Sun.