A pregnant mother with a chronic heart condition falls unwell, Nancy grows suspicious of a young father’s erratic behaviour, and Matthew prepares for a visit from his father.

Sister Monica Joan seeks advice from a clairvoyant. Matthew is shocked to discover squatters in one of his warehouses, and Shelagh faces the most challenging delivery of her career.

Nonnatus House welcomes a new recruit, Nurse Valerie Dyer. A vulnerable young man captures Fred and Violet’s hearts, whilst the whereabouts of Sister Mary Cynthia is a concern.

Valerie Dyer cares for a pregnant Somali woman and is shocked by aspects of this unfamiliar culture. The nuns and midwives try to provide the best care for Sister Mary…