Season 4 - Episode Guide

A chance encounter with an impoverished child forces Trixie to see an unfamiliar darker side of life. As Nonnatus House welcomes a new resident, Nurse Barbara Gilbert, Tom Hereward has a surprise romantic gesture in store for Trixie.

Barbara faces her most challenging case to date when she treats a first-time mother and the birth does not go according to plan.

The Nonnatus team rallies to support first-time parents Marie and Tony Amos when Tony is arrested for gross indecency with another male. Elsewhere, as Poplar is gripped by an outbreak of dysentery, Trixie undertakes her first official church duty since her engagement to Tom.

The midwives face one of their busiest nights to date, whilst Sister Winifred concentrates her efforts on the prostitutes of Poplar. Elsewhere, cracks start to appear in Trixie and Tom Hereward's relationship.

Sister Julienne's faith is challenged when a mother refuses medicine for her newborn baby. Dr Turner's involvement in the case forces him to face his own demons. Meanwhile, Barbara must work out a way to communicate with a pregnant Sylheti woman.

A young diabetic girl faces heartbreak when she falls pregnant as a result of a clandestine romance. Elsewhere, the midwives become involved with a settlement of Irish Travellers and Sister Mary Cynthia delivers her first baby since becoming a nun.

The maternity home sees two school friends reunited and their lives become intertwined in the most unexpected way.

Trixie and Sister Mary Cynthia team up to support a deaf mother-to-be, while a case of morning sickness proves more serious than initially suspected. Elsewhere, Fred's daughter is less than delighted about his forthcoming wedding.

As Poplar readies itself for Christmas 1960, Nonnatus House is rocked when Sister Monica Joan goes missing.