For four young immigrant women living in Boston’s North End in the early 1900s, escaping tradition doesn’t come easy. But at least they have one another and the Saturday Evening Girls Club, a social pottery-making group offering respite from their hectic home lives - and hope for a better future.

Paris, 1939. Hollywood actress Drue Leyton, married to Frenchman Jacques Tartière, lives as an expatriate in love. But when her husband is dispatched to Brittany to work as a liaison for the British military, Drue finds herself alone with her housekeeper, adrift and heartsick in her adopted city. With her career and fame forty-five hundred miles away, Drue accepts an opportunity that will change her life forever.

Anna Cavanaugh is a restless young widow and brilliant French teacher at an all-girls school in Washington, DC. Everything changes when she’s recruited into the Office of Strategic Services by family friend and legendary WWI hero Major General William Donovan. Donovan has faith in her - and in all his “glorious amateurs” who are becoming Anna’s fast friends: Maggie, Anna’s down-to-earth mentor; Irene, who’s struggling to find support from her husband for her clandestine life; and Julia, a cheerful OSS liaison.

1944: Fiona Denning has her entire future planned out. She’ll work in city hall, marry her fiancé when he returns from the war, and settle down in the Boston suburbs. But when her fiancé is reported missing after being shot down in Germany, Fiona’s long-held plans are shattered. Determined to learn her fiancé’s fate, Fiona leaves Boston to volunteer overseas as a Red Cross Clubmobile girl, recruiting her two best friends to come along. There’s the outspoken Viviana, who is more than happy to quit her secretarial job for a taste of adventure.

Soline Roussel is well schooled in the business of happy endings. For generations her family has kept an exclusive bridal salon in Paris, where magic is worked with needle and thread. It’s said that the bride who wears a Roussel gown is guaranteed a lifetime of joy. But devastating losses during World War II leave Soline’s world and heart in ruins and her faith in love shaken. She boxes up her memories, stowing them away, along with her broken dreams, determined to forget.

For Jackie Pierce, everything changed the summer of 1979, when she spent three months of infinite freedom at her bohemian uncle's sprawling estate on the California coast. As musicians, artists, and free spirits gathered at The Sandcastle for the season in pursuit of inspiration and communal living, Jackie and her cousin Willa fell into a fast friendship, testing their limits along the rocky beach and in the wild woods... until the summer abruptly ended in tragedy, and Willa silently slipped away into the night.

A lot has changed since Ambrosia Wellington graduated from college, and she’s worked hard to create a new life for herself. But then an invitation to her ten-year reunion arrives in the mail, along with an anonymous note that reads, “We need to talk about what we did that night.” It seems Ambrosia’s past—and the people she thoughts she’d left there—aren’t as buried as she believed. Amb can’t stop fixating on what she did or who she did it with: larger-than-life Sloane “Sully” Sullivan, Amb’s former best friend, who could make anyone do anything.

Kathleen has always been dramatic. She suffers from the bizarre malady of experiencing stabbing pain in her feet. On her 16th birthday, she woke screaming from the sensation that her tongue had been cut out. No doctor can find a medical explanation for her pain, and even the most powerful drugs have proven useless. Only the touch of seawater can ease her pain, and just temporarily at that.

Iris Chapel and her five elegant sisters, all of them heiresses to the Chapel firearms fortune, live cloistered in a lavish Victorian mansion. Neglected by both a distant, workaholic father and a mentally troubled mother—who believes their home is haunted by the victims of Chapel weapons—the sisters have grown up with only each other for company. They long to escape the eerie fairy tale of their childhood and move forward into the modern world, but for young women in 1950s Connecticut, the only way out is through marriage.

When Sylvie Durand receives a letter calling her back to her crumbling family home in the South of France, she knows she has to go. In the middle of a sweltering 1990s summer marked by unusual fires across the countryside, she returns to La Reverie with her youngest daughter, Emma, in tow. As memories of the events that shattered their family a decade earlier threaten to come to the surface, Sylvie struggles to shield Emma from the truth of what really happened all those years ago. In every corner of the house, Sylvie can't escape the specter of Elodie, her first child.

At loose ends after the devastating death of her mother, Una Richardson responds to an advertisement for a ladies’ companion, a position that leads her into the wealthy, secluded world of Mrs. Elspeth McKenzie. But Elspeth's home isn’t the comforting haven it seems. Kathryn, her cold and bitter daughter, resents Una's presence. More disturbing is evidence suggesting two girls lived here before her.

Alison has never been a fan of Christmas. But with it right around the corner and her husband busily decorating their cozy Vermont home, she has no choice but to face it. Then she gets the call. Mavis, Alison’s estranged mother, has been diagnosed with cancer and has only weeks to live. She wants to spend her remaining days with her daughter’s family. But Alison grew up with her mother’s alcoholism and violent abuse and is reluctant to unearth these traumatic memories.

Ever since she was adopted from a Sri Lankan orphanage, Paloma has had the best of everything - schools, money, and parents so perfect that she fears she'll never live up to them. Now at 30 years old and recently cut off from her parents’ funds, she decides to sublet the second bedroom of her overpriced San Francisco apartment to Arun, who recently moved from India. Paloma has to admit, it feels good helping someone find their way in America - that is, until Arun discovers Paloma's darkest secret, one that could jeopardize her own fragile place in this country.

As kids, Emily and Chess were inseparable. But by their 30s, their bond has been strained by the demands of their adult lives. So when Chess suggests a girls trip to Italy, Emily jumps at the chance to reconnect with her best friend.

When Valerie de Vere Cole, the niece of Prime Minister Neville Chamberlain, makes her deep curtsey to the King and Queen of England, she knows she’s part of a world about to end. The daughter of a debt-ridden father and a neglectful mother, Valerie sees firsthand that war is imminent. Nevertheless, Valerie reinvents herself as a carefree and glittering young society woman, befriending other debutantes from England’s aristocracy as well as the vivacious Eunice Kennedy, daughter of the US Ambassador.

1947: Adventurous Radcliffe graduate Catherine “Cat” Killeen cancels her wedding and upends a future that no longer suits her. At the behest of her professor and hungry for a challenge, Cat arrives in Virginia to work on a confidential military project. A student in cryptoanalysis, Cat is already ahead of the game—to assist in rooting out Soviet spies who have infiltrated the US. Joining the “government girls” of Arlington Hall, Cat gains the respect of her superiors and the friendship of her peers. Then, on a night out in DC, Cat runs into Jonathan Dardis.

Anna Cavanaugh is a restless young widow and brilliant French teacher at an all-girls school in Washington, DC. Everything changes when she’s recruited into the Office of Strategic Services by family friend and legendary WWI hero Major General William Donovan. Donovan has faith in her - and in all his “glorious amateurs” who are becoming Anna’s fast friends: Maggie, Anna’s down-to-earth mentor; Irene, who’s struggling to find support from her husband for her clandestine life; and Julia, a cheerful OSS liaison.

Paris, 1939. Hollywood actress Drue Leyton, married to Frenchman Jacques Tartière, lives as an expatriate in love. But when her husband is dispatched to Brittany to work as a liaison for the British military, Drue finds herself alone with her housekeeper, adrift and heartsick in her adopted city. With her career and fame forty-five hundred miles away, Drue accepts an opportunity that will change her life forever.

In August 1939, 30-year-old Hetty Cartwright arrives at Lockwood Manor to oversee a natural history museum collection whose contents have been taken out of London for safekeeping. She is unprepared for the scale of protecting her charges from party guests, wild animals, the elements, the tyrannical Major Lockwood and Luftwaffe bombs. Most of all, she is unprepared for the beautiful and haunted Lucy Lockwood.

1944: Fiona Denning has her entire future planned out. She’ll work in city hall, marry her fiancé when he returns from the war, and settle down in the Boston suburbs. But when her fiancé is reported missing after being shot down in Germany, Fiona’s long-held plans are shattered. Determined to learn her fiancé’s fate, Fiona leaves Boston to volunteer overseas as a Red Cross Clubmobile girl, recruiting her two best friends to come along. There’s the outspoken Viviana, who is more than happy to quit her secretarial job for a taste of adventure.