Politician Logan Pierce visits Darrow Falls, Ohio, to enlist support for the Union cause. There, he meets the beautiful and strong-willed Jem Collins and insists she remain at home for news of her husband, Ben, after the Battle of Bull Run, but she ignores his advice. Jem knows something is wrong when Ben doesn’t send word he has survived the first major battle of the Civil War.

Jem travels to Washington City with Logan to search for news of Ben and uses her nursing skills to care for the wounded. When Logan kisses her, she resolves to remain faithful to her vows of marriage, but can she? Hearing news Ben may be a prisoner, she leaves the federal capital for Richmond but doesn’t return. Can Logan wait, fearing for her fate, or does he risk capture and hanging as a spy by following into enemy territory?