Nathan Corbett

Four West Baltimore boys wrestle with what to do with the rest of their summer vacation as the new school year approaches.

Herc's job with the mayor takes a hard turn; Prez prepares for his first day as a teacher; Carcetti drops a bombshell on the mayor during a televised debate.

Valchek leaks details of a case to Carcetti; Royce turns against Burrell; Chris tries to enlist Michael into Marlo's ranks.

With election day approaching, the three mayoral candidates make last-minute appeals. Carcetti wrangles for votes as he responds to a potentially devastating smear, and Norris and Greggs get a lead on the Braddock case.

Bubbles identifies a witness for Herc. Colvin offers an incentive. Andre seeks help from Proposition Joe.

With a bounty on his head, Omar calls in a favour from Bunk; with the election finally over, Royce and Carcetti make their peace and contemplate their respective futures; at school, Prez tricks his students into learning maths.