Constable Tremaine dies in the grow-op bust because the cops were trying to bust down a door that opens out and things go from bad to worse when Jan Ferris tells her lawyer that she saw a fire inspection notice at the grow-op that tipped off the sitter to the upcoming raid. Meanwhile, thanks to Klotchko's continuing manipulations on Jacobs' behalf, Da Vinci faces opposition from both the city and the firefighters on the new cross-training plan; Leary gets a lead in the paedophile ring when Clarke Messner points the finger at Dubreau, a hotel owner they were looking at.