An American drama told from four distinct perspectives, spanning the first major wave of Irish immigration to New York through the end of the Civil War. Ethan McOwen is an Irish immigrant whose endurance is tested in Brooklyn and the Five Points at the height of its urban destitution; he is among the first to join the famed Irish Brigade and becomes a celebrated war photographer. Marcella, a society girl from Spain, defies her father to become a passionate abolitionist. Mary and Micah are slaves of varying circumstances, who form an instant connection and embark on a tumultuous path to freedom.