My Mother and Other Strangers on Masterpiece

PBS | 8:00 pm

When scarlet fever threatens the village — and, more specifically, Barney’s (Gavin Drea) sister Maisie (Sophie Mellotte) — it’s up to a certain nurse (Kate Phillips) to help in the new "Episode 3." Some of the locals blame Americans for transporting the disease, but Francis (Michael Nevin) believes there may be another reason. However, Dr. Black (Charles Lawson) thinks there may be yet another cause when Kate (Mia Carlin) also comes down with the illness.