In 1862 Virginia, during the tumultuous "Seven Days" battles of the Peninsula Campaign, federal troops prepare to capture Richmond. Undercover agent Bronwen Llyr is working with her sister Kathryn, a volunteer nurse for the Union Army, when they learn that their brother has been taken as a prisoner-of-war. Now, Bronwen must engineer his flight from prison before the date set for his hanging. But as time escapes her, so too does hope for her young brother.