Bubbles and Johnny are arrested by Officer Michael Santangelo for stealing medical supplies from an ambulance. In exchange for getting the charges dropped, Bubbles tells Greggs and McNulty about Mouzone's shooting of Cheese at the Barksdale towers, and Stringer's collaboration with the East Side drug kingpins. The detectives watch the towers and see the two crews working alongside one another. Meanwhile, Omar and Butchie realize that the shooting with Mouzone was a set-up by Stringer. Omar vows to get revenge. Vondas meets Proposition Joe and assures him that even though he's leaving Baltimore, he'll have new people coming in to restart their operation. In prison, Avon begrudgingly agrees to work with Joe, but is noticeably unhappy with Stringer. The subsequent meeting between Stringer and Joe is photographed by Greggs and McNulty.