In the Public Enemy Era of 1934, two gangs ruled the sleepy little town of White Haven, Pennsylvania. The Diamondbacks, a poor Irish gang from the wrong side of the tracks, have been prematurely implicated in the murder of White Haven's richest and most beloved citizen, Ira Rothschild. Even though the crime happened on the Blue Bloods territory, the rich Jewish gang has been quickly excused of any involvement. New to town, Detective Jack Axelrod wants to get to the bottom of things, and find the real killer who he still believes is on the loose and after the millions left up for grabs by Ira Rothschild's death. But to sort through the scant evidence and sketchy alibis of some of White Haven's most infamous faces, the detective is going to need some help. He finds it in Lace Cochrane, an ex-Diamondback recently released from three years in jail, who also just so happens to be the older sister of the Diamondback recruit accused of murder. Together they try to crack the case wide open when the investigation takes an unprecedented turn. Complications are rising as loyalties are put into question and time is running out before an unfair trial begins. Will the true killer be caught before they strike again?