Belker goes undercover as a cabbie in a very volatile cab territory war; Hill and Renko try to cool down the resentment between a Korean grocer and his black neighbors; Mayor Cleveland's son is busted for drug possession; and Garibaldi is offered a deal to clear his mounting gambling debts.

Belker takes an unexpected bus ride to Springfield; Sid turns Louis Russ over to Buntz, which begins the unravelling of Keenan and Garibaldi's deaths; Jablonski tries to deal with an incompetent khaki officer; and Hunter makes a canine investment.