Demolition work in Poplar uncovers a long-buried secret that leads to a testing and emotional case for the team. Sister Julienne takes on a sensitive delivery.

At the monthly cytology clinic, Sister Frances comforts a young woman who is struggling with a life-changing diagnosis. Lucille supports a difficult mother.

Nancy tackles the plight of meths drinkers living rough in Poplar. Nurse Crane’s patient is torn between two very different futures, and the Order celebrates a milestone birthday.

Sister Hilda and Dr Turner support a young father with a lung condition, Lucille comes to terms with unexpected news, and Trixie takes the lead with a struggling first-time mother.

Trixie is assigned to a complicated case involving a paraplegic husband. Lucille’s attendance at a straightforward delivery takes a distressing turn.

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 suffers its biggest threat yet, but this time it's not the bricks and mortar that are in danger, it's the people.

Nonnatus House faces its darkest day after a tragic incident in the heart of Poplar. As the community rally together, the team must overcome personal anguish to help the injured.