November 8, 1864. On Election Day in New York City another murder hits close to home for the detectives of the Sixth Precinct. With tensions running high, Maguire takes the law into his own hands, forcing Corcoran to make a difficult decision. In Carmansville, Doctor Matthew Freeman struggles to maintain his medical practice while caring for his reclusive wife Sara. Uptown, Robert Morehouse’s newest affiliates prove a more formidable group than he initially anticipated. Joining them on a journey to receive their latest investment, Morehouse is faced with a series of decisions that could have long-reaching repercussions for the family name and others in New York City.