Gregory L. Williams

Avon readies his troops for a war against Marlo.

Pearlman and Daniels confront a cell-phone company.

Sgt. Carver faces discontent of unpaid officers.

Freamon and Greggs move to the homicide unit.

Omar calls in a favor; Royce and Carcetti make their peace; Cutty ponders his job future.

Carcetti faces a dilemma.