Mercy Street (2016)

S2E2 The House Guest

Title: The Unexpected Visitor Plot: Alice sets her sights on a new guest in the house, plotting her next moves. Meanwhile, when Mary takes a turn for the worse, Foster's efforts to nurse her back to health clash with the expectations of the new chief. Charlotte works tirelessly to manage the outbreak of smallpox, while Samuel faces a tough choice that could impact everyone involved.