Dr Turner is horrified to realise he may be partly to blame as the cause of the recent rise in birth deformities comes to light, and tries to prevent further cases. Sister Evangelina returns to work, but has clearly been affected badly by her stroke, and her health continues to deteriorate. A pregnant bride goes into labour during her wedding reception, while her mother is forced to come to terms with her grandchild being conceived out of wedlock.

Nonnatus House struggles to come to terms with Nancy’s revelation. With Sister Julienne taking her annual leave at the Mother House, Sister Hilda relishes the chance to cover and impress with her leadership. While attending an expectant mother, Sister Frances and Trixie are appalled to learn that Poplar’s housing crisis is worsening, leaving the Nonnatus team vowing to fight for change. It’s a poignant time for the Turner family as Timothy readies to leave for medical school in Edinburgh and Cyril receives news from home, prompting him and Lucille to consider their own future. Meanwhile, a very special baby is born, who causes a rift in a close-knit family and leads many people to count their blessings.

An unexpected turn of events leads to a wedding being hastily arranged. Shelagh finally goes into labour. The arrival of the pill leads to unforeseen consequences.

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.

Nonnatus House welcomes two new nuns. Valerie deals with a shocking case that arrives unexpectedly, and the other midwives must handle a complicated multiple birth.

Jenny is assigned to first-time mother Jeanette, who requires frequent visits during a protracted labour, and when she meets her patient's cousin, Philip, a new friendship begins to grow for the midwife. Meanwhile, Chummy worries about her mother's illness when she discovers Lady Browne has discharged herself from hospital.

At the Turners, Shelagh receives a phone call from the Hong Kong adoption agency, which has the alarming news that someone from May's past has arrived in the UK and wants to see the little girl.

The winds of change are blowing through Poplar, as a new government paper calls for the eradication of small hospitals in favour of large general hospitals. Dr Turner and Shelagh are informed that an inspection of the maternity home will decide its fate.

Sister Julienne decides it is time to take matters in hand when a letter arrives from the council saying that it will cut funding to Nonnatus House and no longer pay for the accommodation, and goes to see Violet at one of her open sessions as a local councillor.

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.

An explosion at the docks brings heartache to the people of Poplar, whilst Sister Ursula continues to ruffle feathers with her unpopular decisions.

Dr Turner gets involved with a troubled young man, and Lucille makes new friends. Meanwhile, Barbara lies ill in hospital.

An expectant mother with financial struggles enters into a painful arrangement with her cousin. As Tom provides pastoral care, he reveals why this case touched him more than most.

The team must rally to prepare for Sister Monica Joan's birthday. Meanwhile, the closing of a nearby maternity home brings an influx of expectant mothers to the Nonnatus midwives.

The team reunite but all is not well when a change of management shakes up Nonnatus House.

Miss Higgins receives an unexpected visitor, and Sister Monica ruffles feathers. Poplar votes for its Mother of the Year.

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 Cynthia.

Poplar is rocked by a series of violent attacks on women, and a prostitute is too ashamed to report what she knows - but her actions lead to a dangerous man roaming the streets, with devastating consequences for the residents of Nonnatus House. A mother tries to keep her daughter's pregnancy a secret to avoid gossip, putting her life in danger. The Turners go on a long overdue holiday, but the weather ruins their plans.

Barbara treats a pregnant woman whose dockworker husband is struggling to support her as opportunities for work dry up. She is forced into a difficult decision that leaves Barbara facing the biggest test of her career. Nurse Crane meets a kindred spirit when she learns to speak Spanish, and Sister Evangelina helps a woman with breastfeeding, leading to unforeseen consequences.

Nurse Crane helps a struggling first-time mother accept her baby’s birth defect, and Violet’s bid to be mayor is thrown into turmoil by unforeseen circumstances.

Sister Julienne cares for an expectant mother who has cerebral palsy. Nonnatus House kicks off its new midwifery training scheme with the arrival of four new pupil midwives.

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

It’s September 1966, and at clinic Trixie is tasked with examining a desperate woman who is pregnant with her fifth child. Trixie learns that her patient’s personal life is far from stable, compelling her to speak out publicly. However, the results garner mixed reactions from Nonnatus House and the community. Dr Turner and Sister Frances are entrusted to help a mother-to-be who refuses medical care through her final weeks of pregnancy, and Nancy Corrigan reveals a secret about her background that could threaten her relationship with Sister Julienne and Nonnatus House.

The convent comes under threat of demolition. Fred's pregnant daughter and her young son come and stay with him. Jenny is wooed by a new love interest. Chummy and PC Noakes prepare for the arrival of their baby.

Barbara gets involved with a recently widowed pregnant woman, and Sister Monica Joan has her cataract surgery.

Sister Julienne calms an anxious new mother who has put her baby in danger. Jenny, seconded to The London, is impressed with the facilities, but soon begins to see cracks in the establishment. Chummy is upset to learn that her mother has walked out on her father, leaving Lady Browne penniless. As Dr. Turner and Shelagh continue the adoption process, they uncover a devastating secret.

Valerie helps a struggling mother accept her son's birth defect. The Turners oversee a measles vaccination trial at the clinic as the team prepare for the Whitsun bank holiday.

Dr Turner helps the Mullucks cope with the stresses of caring for a disabled child as the terrible legacy of thalidomide becomes apparent and Nurse Crane faces an unexpected crisis.

Sister Hilda digs deep to give her terminally-ill patient her final wish whilst the Turners must prepare to say goodbye to May. Fred and Reggie are keeping secrets from each other.

Trixie helps a blind mother, Marion, care for her new baby, but trouble starts when Marion’s sister calls Social Services to intervene.

Trixie and Sister Mary Cynthia help a deaf-and-dumb woman, and Barbara has a baffling case. Meanwhile, Fred's daughter arrives from Birmingham and interferes with his and Violet's engagement, and Delia has a proposal for Patsy.

Jenny has an eventful few days, starting with a patient who as well as having herself to worry about, is also struggling to cope with her mother, an agoraphobic who hasn't been outside for at least 12 years. On top of that, Alec asks the midwife to accompany him to Brighton for the weekend, leaving her wondering if his intentions are strictly honourable. However, things soon take a tragic turn. Meanwhile, Shelagh joins the local choir to take her mind off her problems.

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.

Lucille must win the trust of a mother who is terrified of giving birth. Nurse Crane and Dr Turner are anxious to find a possible smallpox sufferer.

When Peggy’s brother is diagnosed with cancer, Jenny and the nuns are called upon to care for him. Jenny gets to know the siblings better. The Nonnatus House residents get involved in Fred’s latest money-making scheme which involves a pig called Evie.

Sister Julienne cares for a pregnant prostitute, while Dr Turner puzzles over a mysterious string of symptoms.

Sister Julienne receives an SOS from Holloway Prison, whose usual maternity workers have been struck down by illness, and when she and Trixie step in to help, the nun puts her reputation on the line to prevent a heavily pregnant convict having her unborn baby taken away by social services. Shelagh faces heartache when a routine pregnancy check reveals something far more serious, Alec has a confession for Jenny and Fred takes the gang to the theatre to celebrate Chummy's birthday - only for the trip to end in disaster.

Rosalind oversees the care of a teenage mum and uncovers a disturbing truth. Trixie and Matthew struggle with their change in fortune whilst Joyce receives an unexpected visitor.

Mother Mildred decides it’s time for Sister Frances to attend her first solo birth. Trixie consoles a patient who discovers she has gonorrhea.

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.

A baby girl is snatched from her pram and the local community unites for the search. Cynthia sees another sort of loss as she tends to soon-to-be parents David and Margaret.

Chummy makes an important decision, Jenny reconnects with Jimmy, and Cynthia's conduct is called into question after the death of a baby she delivered.

Jenny celebrates her birthday with Chummy and the girls, but soon after finds herself taking care of a patient in an abusive marriage.

In his new role, Cyril faces his toughest challenge yet, whilst Matthew is summoned to a board meeting with his mother. Elsewhere, the pupil midwives prepare for their final exams.

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

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.

The Sisters welcome new postulant, Sister Catherine, to Nonnatus House, whilst a bold intervention boosts numbers for the measles vaccination clinic.

Poplar’s housing crisis deepens, bringing a sad case to the attention of the team, whilst a worrying disease outbreak directly impacts the residents of Nonnatus House.

Dr Turner and Nurse Crane must deal with an alarming outbreak of diphtheria. Fred finds an abandoned baby in a dustbin, and the team must help locate its mother.

Trixie's feathers are ruffled when Jenny is promoted, but the new Acting Sister has more to worry about after a mother-to-be reveals the baby she is carrying doesn't belong to her husband - and to complicate matters, the real father is black. Cynthia is inspired by a lecture on natural childbirth, convinced it will help an overly anxious patient, while Alec and his friends try to persuade Jenny to join them on a CND march.

Sister Hilda and Dr Turner support a young father with a lung condition whose wife is planning a home birth, and discover he is also coping with the repercussions of a past trauma. Cyril looks for a job that will put his qualifications to good use, a first-time mother struggles to bond with her daughter, and Fred comes up with a way to keep the wards cool during a summer heatwave.

Nonnatus House prepares for the annual summer fête, but when a baby show is announced, the girls must find a host for the proceedings. Meanwhile, a patient of Jenny's puts her life at risk, and Sister Bernadette remains troubled.

Trixie makes a serious mistake at work, whilst the team work hard to help a Biafran family. Nancy delves into her family’s past as the world celebrates the moon landings.

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, and Lucille's attendance at a straightforward delivery takes a distressing turn. Shelagh decides to organise a jumble sale to raise money to fix some broken playground equipment in the park. When Sister Julienne finds a suspicious item, chaos ensue

Sister Frances finds herself in a tricky situation when a pregnant woman confides in her. Sister Julienne’s new venture hits a stumbling block.

It's March 1970. The team support a pregnant teenage girl whose parents believe in an immaculate conception. Demonstrations cause havoc for the Nonnatus team, whilst Nancy’s relationship blossoms.

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 Frances is at a loss when she cares for diabetic and recovering cancer patient Albert Calthorpe whose fiercely independent wife Grace refuses to accept further help, despite caring for her husband, her elderly mother and her pregnant daughter.

It’s April 1970. Rising rates of gonorrhoea in the district cause alarm, and Trixie cares for an unmarried first-time mother recently diagnosed with a mental health condition.

The midwives help a family with a history of drug addiction. Dr Turner and Shelagh take the final steps in May’s adoption, whilst Joyce faces the disciplinary board.

Jenny Lee start her midwife career at Nonnatus House in London. She is surprised to find that it is a nursing convent and not a hospital. Her first case is a woman pregnant for the 25th time!

A fun day at the seaside proves traumatic for the Turners and puts May’s future with them in jeopardy. Nurse Crane helps a young couple cope with a rare cancer diagnosis.

Jenny does some district nursing to extend her community practice experience and befriends an old soldier with awful leg ulcers. Trixie and Cynthia enrol Winnie Lawson as a new patient.

Poplar welcomes a brand new cervical cancer-screening clinic to the Institute and Dr Turner, Shelagh and Trixie are pleased to be part of the exciting new venture.

A solo delivery puts Sister Julienne’s skills to the utmost test. The Nonnatus team oversee the care of a man living inside an iron lung, and Cyril returns from Jamaica.

Jenny is seconded to a short-staffed hospital in London, but grows increasingly reluctant to carry out her duties when she finds out she is working under intimidating surgeon Mr Tracey. Back in Poplar, the midwives are introduced to newcomer Jane and outspoken twins Meg and Mave Carter. The sisters are identical in every way, except one of them is now pregnant - forcing them to come to terms with the impact a baby will have on them.