Set in the early 1960's in New York City's Public Morals Division, where cops walk the line between morality and criminality as the temptations that come from dealing with all kinds of vice can get the better of them.
The streets of Hell's Kitchen run red with the blood of the Irish Mafia, as the west side war comes to a head. Muldoon treats Christine to a night on the town, and makes a decision. Duffy gets surprising news from Deirdre. As Bullman's feelings for Fortune intensify, he's forced to make a decision about their relationship.