Daniels and McNulty attempt to continue the case; Freamon and Bunk try to trace a crucial call; Pearlman and McNulty celebrate a break in the case.
A witness who testified against D'Angelo is found murdered; Greggs is briefed on the Barksdale probe.
A tip-off prompts arrest, but Avon and Stringer grow suspicious; another witness to the Grant murder emerges.
Gang members arrested in the raid face arraignment; Greggs and McNulty try to turn Hardcase into an informant.
Rawls' demands create strange allies; Wallace and D'Angelo wrestle with their consciences; Omar turns witness.