Contains spoilers for this episode and earlier episodes.
Snoop and Chris Partlow prepare a vacant row house, kill a captive and seal the building. Marlo’s crew is tightening its hold on the corners. Bodie warns Lex that killing Fruit will bring Marlo’s response, but Lex shoots Fruit anyway. Marlo chooses a limited reprisal: his men will kill Lex without starting a wider war. The boys’ summer plans go badly when they try to avenge Dukie’s beating with urine-filled balloons. The scheme collapses, Michael is caught and beaten, and Namond later buys ice cream for his friends.
At school, Prez arrives as a trainee math teacher and struggles through a seminar before taking in his classroom. Carcetti’s campaign leaves him discouraged by his poll numbers, while McNulty stays in patrol despite Daniels’s offer to return to detective work. Freamon and Greggs find a way to serve subpoenas tied to the Barksdale investigation. A wiretap reveals Fruit’s murder, and Bunk gives Freamon Fruit’s phone to develop new leads. Little Kevin asks Randy to pass Lex a message about meeting Patrice. Bunk and Carver search, then leave; Snoop and Chris kill Lex and hide his body in a vacant house. Little Kevin pays Randy and tells him that Lex was killed after following the message.