The Hudson River School

October 18, 1864. Corcoran once again finds himself re-evaluating the decisions he's made about Annie. The arrival of a group of high society out-of-towners offers Robert Morehouse a unique business opportunity. As he explores the potential investment and its risks, he finds himself running interference on personal conflicts between those closest to him. Meanwhile, Detective O'Brien's spitfire of a wife, Sybil, demands that her husband uses his connections within the Sixth Precinct to verify the truth of a rumor that New York City is in danger.