An insider's look at the making of Copper. Viewers go behind the scenes of the gripping crime series as the cast and crew recreate one of the darkest and most storied times in American history--1860s New York City.

Corcoran and O'Brien are charged with solving a peculiar double murder. As the detectives weigh the evidence and interview witnesses, it becomes apparent that affairs and deception come together in a surprising case of revenge gone wrong.