Alexandria, Virginia, 1862. The lives of two volunteer nurses on opposing sides of the Civil War--Mary Phinney, a staunch New England abolitionist, and Emma Green, a native Confederate belle--collide at Mansion House, the Green family's luxury hotel that has been transformed into a Union Army hospital. Ruled under martial law, the border town in Alexandria is now the melting pot of the region, filled with soldiers, civilians, female volunteers, doctors,...