S3, E7: Herc discovers a blast from the past, which he belatedly reveals to his ex-colleagues. Daniels blows a gasket over the real reason the detail was reassigned. Stringer Bell learns from Donette that she's told Brianna about McNulty's visit. Bubbles makes a sales call and finds Johnny during the long, strange trip. Omar grapples with guilt as Butchie points out its pitfalls. Greggs stumbles into Cheryl, forcing them to confront the realities of their relationship. Carver announces a new tax initiative to help the unemployed. After a traffic stop turns bad, Colvin is forced to explain Amsterdam to members of the detail. Bunk receives a gift-wrapped surprise. Councilman Carcetti confronts Mayor Royce after learning that nothing's been done about the witness protection issue. McNulty tracks Terri to Washington, where he discovers the ups and downs of a long-distance relationship. Marlo dispatches a drive-by on a Barksdale corner from the calm of his pigeon coop.