September 26, 1864. Racial tensions in Five Points come to a head as the body of an Irishman is discovered lynched and hanged. While all evidence points toward a black pastor as the murderer, Corcoran has doubts. As the people of New York cry for a hanging, Corcoran is forced to question every piece of evidence with the help of Doctor Matthew Freeman. The Morehouse family attempts to capitalize on the situation by eyeing new parcels of land in the Points that may become available if the city panics. Meanwhile, the search for Corcoran's missing wife unexpectedly lands in the hands of Eva Heissen – though Corcoran is entirely unaware.

October 11, 1864. Detectives Maguire and O'Brien uncover a gang's scheme to rob some of the wealthiest families in New York City. Corcoran, once informed, must ensure the safety of patrons at an upscale fundraiser without intruding upon Norbert Morehouse and Elizabeth Haverford. As the police prepare for the gala, Maguire reveals a startling, life-changing decision, surprising O'Brien and Corcoran. Meanwhile, Marcus Freeman prepares Jasper Longfield for his exhibition fight against "Irish" Jake McGinnis. As the former boxer trains his new protégé, it becomes apparent to Doctor Matthew Freeman that Marcus has his own interests at heart.