Stepfather Colm attempts to sexually assault Mairin in her bedroom; her brother Liam intervenes and attacks him.

Mairin's mother and stepfather bring Mairin to the Home of the Good Shepherd instead of returning her to school.

Mairin is assigned a number and a new name upon arrival at the Good Shepherd, her identity stripped away.

Angela confides to Mairin that the institution's doctor has been repeatedly raping her during his so-called corrective sessions.

Angela is taken to St. Francis hospital, where she is drugged and delivers her baby.

Angela is told by the nuns that her newborn child was stillborn and did not survive.

Sister Bernadette finds a live birth certificate for Angela's child among files she was ordered to destroy and secretly hides it.

On a field trip to Niagara Falls, the girls make a pact to meet there every Fourth of July once free.

Six girls hide in the library bookmobile during its monthly visit and Mairin drives it away from the Good Shepherd.

Stranded and desperate after the escape, Mairin uses Flynn's dime to call him and he takes her to Heyday Farm.

Mairin reconciles with her mother, who reveals she was forced to give up a child at a Magdalene laundry in Limerick.

Angela finds Mairin at Niagara Falls on one of their annual reunion dates, and the two women reconnect.

Mairin's family recognizes Odessa Bailey as the author of a new book on gospel music, prompting Mairin to contact her.

Sister Bernadette follows the visiting women to the parking lot and privately tells Angela her daughter did not die.

Angela wins her court case against the Sisters of Charity for the abuse inflicted at the Home of the Good Shepherd.

The story begins with Mairin O'Hara's world collapsing when her stepfather attempts to assault her and her mother, rather than protect her, sends her to the Home of the Good Shepherd. Inside the institution, Mairin learns the full horror of what is happening to the girls, particularly Angela, who is being raped by the institution's doctor and becomes pregnant. Angela gives birth and is told her child died, but a sympathetic nun secretly preserves the evidence that the baby survived. Mairin leads a daring escape in the library bookmobile and begins rebuilding her life at a hippie commune, eventually marrying Flynn and finding purpose on their farm. Decades later, the discovery of Odessa's published book reunites the women, and a shocking revelation from Sister Bernadette sends Angela on a search for her living daughter. Angela's legal victory against the Sisters of Charity brings the story to its resolution.

The headline events that drive Wayward Girls from abuse to justice.

Mairin's best friend Fiona is discovered to be pregnant and is sent away secretly to live with her Aunt Cookie.

Flynn Gallagher gives Mairin a Mercury dime and tells her she can always call him for help.

Mairin attempts her first escape by hiding in a laundry delivery truck but is found and returned to the nuns.

While locked in the closet as punishment, Mairin overhears the Mother Superior discussing cash hidden in the reliquary.

Mairin steals a pair of scissors and physically blocks Dr. Gilroy from conducting his so-called examination of Angela.

A nun discovers and kills Kay's pet mouse; Kay's hair is then cut as punishment after she is blamed for the missing scissors.

Helen secretly makes mahjong tiles from priest collar tabs stolen in the laundry, and the girls play secret games together.

On the drive back from the Niagara Falls field trip, the girls spot Flynn's business van passing on the road.

Mairin sneaks into the Mother Superior's office at night and steals the cash hidden in the secret drawer.

Fiona visits Mairin at Heyday Farm commune and describes the pain of surrendering her baby for adoption.

Liam returns home from Vietnam after falling seriously ill with malaria during his military service.

Mairin and Liam discover paperwork showing their mother is owed a financial settlement from the power company over their father's death.

The women bring Sister Bernadette to the former Good Shepherd building, open a hidden safe, and retrieve Angela's files.

Angela and Everly meet face to face for the first time and feel an immediate, powerful bond.

Mairin and Flynn host a gathering at Wayward Farm to celebrate Angela's legal victory and reflect on their shared lives.

Before Mairin enters the Home, her best friend Fiona's pregnancy and forced adoption foreshadow the suffering that awaits many of the girls inside. At the institution, small acts of resistance accumulate — stolen mahjong tiles, a glimpse of Flynn's van on the road — as the girls quietly build a survival network under the nuns' noses. Mairin's solidarity drives her to protect Angela directly, at personal cost, while the nuns use Kay's pet mouse as a weapon of collective punishment. After the escape, Mairin's life slowly opens up through her reconnection with Fiona, her brother Liam's return from Vietnam, and a financial discovery that finally frees their mother from Colm. In Book 2, the women's collective effort culminates in retrieving the hidden files from the old building, reuniting Angela with her daughter Everly, and gathering at Wayward Farm to mark a hard-won peace.

The supporting moments and personal stories behind the main events.

Liam teaches Mairin to drive and coaches her in self-defense, urging her to always trust her instincts and escape.

Liam receives his draft notice and is shipped out to fight in the Vietnam War.

Dr. Gilroy tries to force Mairin onto an exam table against her will and she physically fights him off.

Sister Bernadette allows Mairin into the office to eat; Mairin secretly pockets the skeleton key she finds in the desk.

Mairin rallies the girls to the bathroom where they all cut one another's hair short in an act of collective defiance.

Mairin sneaks into the front office and broadcasts music across the entire Good Shepherd building through the PA system.

Angela's grandmother and the Mother Superior decide Angela's adoption plans and sign away her parental rights without consulting Angela.

Angela returns from the hospital gaunt and shaken; Mairin uses the skeleton key to play music through the PA to comfort her.

At the Niagara Falls field trip, Mairin notices an advertisement for Heyday Farm commune and resolves to go there if she escapes.

Mairin devises the full escape plan: steal street clothes from the laundry, steal the hidden cash, and flee in the bookmobile.

Police spot the bookmobile on the road; the girls abandon the vehicle and scatter on foot in different directions.

Mairin and Liam confront and drive away Colm when he attempts to return to their mother after learning about the settlement.

Angela leads the women in researching the Good Shepherd's history, discovering that Bernadette and Rotrude live in a nuns' retirement home.

Angela files a lawsuit against the Sisters of Charity, determined to expose the abuse inflicted on her at the Home.

Helen presents her secret journal as legal evidence, and Dr. Gilroy's son provides a DNA sample for Angela's court case.

Mairin's story is shaped from the start by turning points, beginning with her brother Liam's hard-won lessons about survival and her own defiant rejection of Dr. Gilroy's abuse on her very first day at the Home. Inside the Good Shepherd, her acts of rebellion — stealing the skeleton key, broadcasting music through the PA system, rallying the girls to cut their hair — build toward a collective will to escape. The most harrowing turning point belongs to Angela, whose fate and parental rights are signed away by others while she is given no voice. After the escape, Mairin finds further turning points in confronting her stepfather and uncovering the truth about her mother's hidden past, slowly assembling a life of purpose and healing. In Book 2, the women's research reunites them with Bernadette and leads them to the evidence that will hold the Sisters of Charity accountable, driving the story toward its resolution.