Things are finally going Da Vinci's way: the newly established Red Light zone is operating smoothly; both Lloyd Manning and Roger Woo are interested in buying the racetrack; the homeless squatters have moved to Crab Park; and one of the candidates for the police chief job assures Da Vinci of the viability of cross-training fire and police.

Da Vinci must defuse an impending war between the city's most powerful unions when the Police suggest that a Fire Department inspection notice tipped off a grow operator to an impending raid, causing an officer's death. Leary's investigation of a pedophile ring leads to a prominent developer and an old nemesis.