Confederate belle Emma nurses her wounded friend. Dr. Foster wrestles with his marriage and career as Mary tries to improve her patients' lives with Samuel's help. Aurelia submits to Silas' advances in exchange for his help.

During a Union ball at their house, the Green girls and Frank initiate a daring plan to help Tom escape. Mary releases Dr. Foster, still shaky from his detox, from his "quarantine" so he can guide Samuel through a delicate operation.