Nuala cares for Maura as she heals. Maura reflects that while she does not miss Christy, she grieves the life she hoped to have. Sacks of letters from women across Ireland arrive for her, Nuala, and fellow activist Sharon. One anonymous letter expresses a woman’s wish to collect the government-issued children’s allowance herself, noting that other women suffer when their husbands drink the money away. Another, from a woman calling herself “Young and scared in Westmeath,” reveals her fear of marriage and childbirth and asks for help. Maura reaffirms her conviction that the future will be different for Irish women.

Maura and Bernie take the McCarthy girls costume shopping and trick-or-treating. Bernie carries flyers for the November 14 meeting, sliding one under each door. At one house, she realizes too late that the woman is Mrs. Dunne, Father Walsh’s housekeeper, and Marie has already slipped a flyer under her door. Alice proudly announces the family made them. Disgusted, Mrs. Dunne declares she will boycott the butcher shop and encourage others to do the same. Bernie gives the remaining flyers to Maura to distribute alone.

Later, Marie asks if Maura is bad for not wanting babies, repeating what Sister Sloan told her at school, and shows Bernie a red mark on her palm where the nun struck her with a ruler. Bernie calls Sister Sloan a bully and explains that people like Maura stand up to bullies. When Marie asks if Bernie does the same, Bernie tearfully replies that she wants to.

Maura joins Bernie, Nuala, Sharon, and Geraldine for their first open-invite meeting. Though they had booked a function room at the Shelbourne Hotel, the manager cancels upon discovering the meeting’s purpose. Undeterred, the women gather on the hotel steps, where forty women join them in the pouring rain. Nuala leads them in chanting for contraception, but guards arrive and threaten arrest for causing an obstruction. The crowd disperses, leaving only the five organizers. Maura suggests they enter the Shelbourne for tea to show they will not be intimidated, and the manager—whom she recognizes from her wedding day—permits them inside with a warning to behave.

Over six months, the movement’s meetings have grown from forty to hundreds of attendees. Dan’s shop faces boycotts, but Bernie stays committed for her daughters. After traveling around Ireland posting flyers, the women hold a large meeting at the Mansion House. When a woman demands to know if they can provide condoms, Maura proposes traveling to Belfast, where contraception is legal. An attendee challenges the idea, fearing arrest upon return. Maura argues that authorities could not arrest all Irish women if enough made the journey. Convinced, Nuala pledges aloud to travel to Belfast and buy the pill; Sharon and Maura join her, followed by nearly one hundred other women. Nuala has them sign a notepad, officially forming the Irish Women’s Liberation Movement.

Maura’s house has become movement headquarters, filled with letters, placards, and women sewing a banner from her tablecloth and Christy’s expensive suits. Of the original one hundred pledged participants, 45 remain committed, while others have dropped out due to family pressure. Sharon arranges RTÉ camera coverage of their Belfast journey, making some women anxious. While women try on clothes from Maura’s wardrobe upstairs, Christy’s solicitor arrives to inform Maura that Christy is selling the house and she has thirty days to vacate. Bernie offers to take her in, but Maura resolves not to let Christy derail the movement, declaring houses are temporary but their future is singular.

On the morning of May 22, 1971, Bernie and her daughters walk to Connolly Station to see the women off. The station is unexpectedly crowded with reporters and cameras. Geraldine tells Bernie she has decided to join the trip to represent single women. Dan arrives, having run from the shop, and urges Bernie to board the train, arguing their daughters’ futures matter more than boycotts. Moved by his support, Bernie agrees. A reporter asks to photograph her for the front page of the Times, and Bernie insists Maura join the photo. Bernie says an emotional farewell to Dan and the girls and boards the train to Belfast.

In Belfast, Nuala instructs the 47 women to split into small groups to visit chemists. Bernie and Teresa successfully purchase condoms, but when Maura requests the contraceptive pill, she is told she needs a doctor’s prescription. Learning from the chemist that the pill resembles aspirin, Maura purchases aspirin and empties the tablets into an unmarked plastic bag to pass them off as the pill. The women regroup, and many others follow Maura’s lead. The group celebrates by sitting on the footpath eating fish and chips, their handbags full of condoms.

The return journey is silent and tense as the women comprehend that they are now lawbreakers. Teresa cries as they approach Dublin, fearing arrest. The train arrives to a large crowd chanting support and holding banners. At customs, an official searches Nuala’s bag and finds condoms. Nuala defiantly displays her aspirin bag and urges everyone to take a tablet. Before flashing cameras, all 47 women theatrically swallow an aspirin. Faced with the supportive crowd, customs and police take no action, and the women rush past the checkpoint. Bernie reunites with Dan and her daughters, while Maura, Geraldine, and Teresa celebrate by blowing up condoms like balloons.

A police officer pulls Maura aside from the celebrating crowd. The officer informs her that Christy died that afternoon. He was discovered in his car outside the hospital and died before signing the house sale papers, meaning the sale was not finalized. The officer offers Maura a ride home, but she declines, saying she will be okay.

Maura tells Saoirse that Christy’s death was officially ruled a heart attack, but she and Marie imply it was suicide covered up due to his social standing. Marie reveals that Bernie died from cancer in 2012 and Dan followed a year later, likely from a broken heart. Saoirse shares that contraception is now free for women under 32; Maura acknowledges the progress but notes it remains positioned as women’s responsibility. Marie tells Saoirse that Bernie would have liked her. On the platform, Saoirse watches Maura and Marie reunite with the McCarthy family—Elizabeth, Alice, and their children and grandchildren—who make this pilgrimage annually.

A railway worker asks Saoirse to leave the train, which terminates in Belfast. She texts her partner Miles saying they need to talk, then calls him from a bench outside a pharmacy. They calmly and mutually acknowledge their relationship is over. Saoirse tells Miles he will be a great father someday with someone else. Miles asks if she will be okay. Feeling a sense of peace and rightness, Saoirse replies that she already is.