A fifteen-year-old girl in a Pennsylvania border town navigates Civil War tensions at home and in the surrounding countryside. Proudly Union in sentiment, she resents her brother's Southern-born wife, cares for ailing relatives, and imagines herself as an army nurse. When battle reaches the area, she and local families confront the arrival of wounded soldiers, moral ambiguities, and personal losses. Through small acts of service, encounters with enemy soldiers, and the experience of wartime fear and grief, she matures, reevaluates community prejudices, and learns compassion amid the conflict's harsh aftermath.