Mercy Street | Promotion | Episode 4 Preview: The Belle Alliance

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. Episode 4: The Belle Alliance airs February 7 at 10/9c. #MercyStreetPBS