Leary gets more information on the paedophilia ring, and learns that his key witness was a member of the ring. Jacobs is furious when he catches wind of Da Vinci's plan to institute a red light zone, and he and Klotchko partner up to bring the mayor down. Finn and Kosmo investigate two linked shootings -- that of a schoolteacher, and then that of an Indo gang member close by. Ferris gets herself on the wrong side of the firemen after they unknowingly interfere in a grow-op bust. Da Vinci spends the night at Billie Simms' party, not realising that Zack is trying to contact him regarding the raid on the squatters.

The Crown tries to negotiate with suspects as the police and fire unions get closer to a full scale war. Meanwhile, Da Vinci tries to do some quality control within his own departments, but when two of his staff decide to become independents over the red light zone, he realises his majority is becoming a minority Ferris is encouraged to take the fall for the grow-op scandal.