A young bride-to-be suffers an identity crisis after the diagnosis of a hidden condition, an expectant father is diagnosed with a rare condition himself, and romance is in the air for Lucille.

When Phyllis is admitted to hospital, Mother Mildred returns to cover her assignments, and soon causes a stir, while Lucille cares for an unwed teenager who wants to keep her baby.

A woman's pregnancy is affected by her husband's infidelity, Sister Frances faces her first solo delivery, Shelagh receives news about May, and Valerie's loyalty is tested.

As Shelagh plans a ball to raise money for new medical equipment, Valerie must come to terms with recent events, while Sister Hilda assists a terminally ill young woman.

Lucille encounters a defiant expectant mother who is less than kind, Phyllis attempts to help an immigrant mother with an alarming medical condition, and Shelagh and Trixie put on a fashion show to raise funds for the maternity home.

Valerie's cousin Maureen endures a difficult labor and subsequent issues, while the Turners' adoption of May comes under threat.

Trixie helps a blind mother care for her new baby, Kevin makes an error which troubles Sister Frances, and Valerie becomes concerned for her grandmother.

The local council threatens to cut funding to Nonnatus House, which may face demolition. Two pregnant women discover they have something surprising in common.

Sister Monica Joan is rushed to hospital, while Trixie is less than impressed to receive a subscription to a Marriage Bureau as a Christmas present. Meanwhile, the circus is in town.

Sister Julienne and Doctor Turner clash over whether to provide a private care service. Then a distressing birth raises fears of another Thalidomide case.

Sister Frances finds herself in a tricky situation when a pregnant woman confides in her. Cyril helps a family find shelter after they are evicted from their home. Sister Julienne's new venture hits a stumbling block.

Sister Hilda and Doctor Turner are involved with a young woman whose health presents a series of challenges. A complicated pregnancy leads the Nonnatus House team on a path of discovery.

As the World Cup draws near Fred places a risky bet on the final. Nonnatus House welcomes four new pupil midwives, Dr Turner meets a 17-year-old boy harboring a desperate secret, and Cyril and Lucille's relationship continues to blossom.

With sister Julienne away on a refresher course, sister Hilda steps in to carry out home visits. The new pupil midwives are settling in well, and there is a sense of hope in the air. While examining expectant mother Vera Sands during a routine visit, sister Julienne is concerned by her toddler daughter who is displaying troubling symptoms. Determined to find out what's wrong, sister Julienne and Dr Turner are on the case. Meanwhile, an overly protective mother struggles to cope with her daughter's teenage pregnancy and is insistent on keeping it low key, much to the frustration of new pupil midwife Nancy Corrigan.

Trixie stirs up controversy in the community when she speaks out on behalf of a patient who is pregnant with her fifth child, but whose personal life is far from stable. Dr Turner and Sister Frances try to help a woman who is refusing medical treatment through the last weeks of her pregnancy, and Nancy reveals a secret about her background that could threaten her relationship with Nonnatus House.

The Nonnatus House staff struggles to come to terms with Nancy's revelation. Sister Frances and Trixie rally the others to take a stand and do something about Poplar's growing housing crisis. Sister Hilda relishes taking charge when Sister Julienne takes her annual leave, Timothy Turner prepares to leave for medical school, and Cyril is forced to reconsider his future after he receives news from home. A very special baby is born, causing a rift in a close-knit family and leading many people to count their blessings.

Lucille and Cyril are excited about their wedding but as the day approaches, nothing seems to run smoothly, and the ceremony itself is put in jeopardy.

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.

Shelagh organizes a special celebration to mark 100 years since the Order first arrived in Poplar - although Sister Hilda feels that she should have been in charge of the festivities.

Sister Hilda and Dr Turner supports a young father with a lung condition and Trixie takes the lead with a struggling first-time mother.

Trixie has been assigned to a complicated case involving a crane driver who was injured in a workplace accident and is now paraplegic. Meanwhile, Nancy and Sister Frances give a talk on the facts of life at a primary school.

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.

An unforeseen event in Poplar means that 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 rallies together, the team must overcome personal anguish to help the injured.

It's April 1968 and change is coming to Nonnatus House. Racial tensions cast a shadow over Poplar, and the sisters welcome a new recruit.

The Turners support a family still suffering the devastating effects of thalidomide, Miss Higgins is involved in an unexpected delivery, and the community stages a talent show.

At a coffee morning for expectant mothers, Sister Julienne meets heavily pregnant Lilian Reynolds, who is expecting her first child.

Sister Veronica is shaken when a mother reveals a terrible truth about her marriage. Shelagh cares for a baby with a life-threatening condition, and Nancy harbours a secret.

The maternity home is thrown into chaos by an outbreak of gastroenteritis, and Nurse Crane fights to save her career. Meanwhile, Cyril encourages Reggie to seek help.

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.

Trixie supports an underage mother through a difficult time, Monica Joan welcomes an unusual guest to Nonnatus House, and Sister Veronica spearheads a new council initiative.

Nancy makes a home visit to Imelda O'Connor, and is surprised that Imelda, her husband Maurice and young son Paul are living in a cramped caravan on a building site.

Dr Turner experiences the biggest test of his career, while Trixie's approaching nuptials cause stress levels to escalate. Sister Julienne hatches a plan to save Nonnatus House.

The maternity home is thrown into chaos by an outbreak of gastroenteritis, and Nurse Crane fights to save her career. Meanwhile, Cyril encourages Reggie to seek help.

It's April 1968 and change is coming to Nonnatus House. Racial tensions cast a shadow over Poplar, and the sisters welcome a new recruit.

Trixie has been assigned to a complicated case involving a crane driver who was injured in a workplace accident and is now paraplegic. Meanwhile, Nancy and Sister Frances give a talk on the facts of life at a primary school.

Shelagh organizes a special celebration to mark 100 years since the Order first arrived in Poplar - although Sister Hilda feels that she should have been in charge of the festivities.

Sister Hilda and Dr Turner supports a young father with a lung condition and Trixie takes the lead with a struggling first-time mother.

Lucille and Cyril are excited about their wedding but as the day approaches, nothing seems to run smoothly, and the ceremony itself is put in jeopardy.

The Turners support a family still suffering the devastating effects of thalidomide, Miss Higgins is involved in an unexpected delivery, and the community stages a talent show.

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.

Sister Julienne and Doctor Turner clash over whether to provide a private care service. Then a distressing birth raises fears of another Thalidomide case.

Sister Frances finds herself in a tricky situation when a pregnant woman confides in her. Cyril helps a family find shelter after they are evicted from their home. Sister Julienne's new venture hits a stumbling block.