Marin Bishop has always played by the rules, and it's paid off: On the cusp of 30, she has a handsome fiancé, a prestigious Manhattan legal career, and her father's hard-won admiration. But with one careless mistake at work, Marin suddenly finds herself unemployed and alone. Before she can summon the courage to tell her parents, a young woman appears, claiming to be Marin's half sister. Seeking answers, Marin agrees to join her on a soul-searching journey to Cape Cod, to meet the family she didn't even know she had.

The Pavlin family built an empire on love. As the first jewelers to sell diamond rings exclusively for proposals, they started a tradition that has defined engagements ever since. But when an ill-fated publicity stunt pits the three Pavlin sisters against one another for a famous family jewel, their bond is broken. No ordinary diamond ring, the Electric Rose splinters the sisters, leaving one unlucky in love, one escaping to the shores of Cape Cod, and the other, ultimately, dead. Now, over a decade later, Gemma Maybrook is still reconciling the reality of her mother's death.

In its heyday, The Golden Hotel was the crown jewel of the hotter-than-hot Catskills vacation scene. For more than sixty years, the Goldman and Weingold families - best friends and business partners - have presided over this glamorous resort which served as a second home for well-heeled guests and celebrities. But the Catskills are not what they used to be - and neither is the relationship between the Goldmans and the Weingolds.

Lauren Adelman and her high school sweetheart, Rory Kincaid, are a golden couple. They marry just out of college as Rory, a star hockey player, earns a spot in the NHL. Their future could not look brighter when Rory shocks everyone - Lauren most of all - by enlisting in the US Army. When Rory dies in combat, Lauren is left devastated, alone, and under unbearable public scrutiny. 

Summer has started in idyllic Sag Harbor, and for Emma Mapson that means greeting guests at the front desk of The American Hotel. But when one of the town's most famous residents, artist Henry Wyatt, dies suddenly, Emma learns he has mysteriously left his waterfront home - a self-designed masterpiece filled with his work - to her teenage daughter, Penny. In Manhattan, legendary art patron Bea Winstead's grief at her lifelong friend and former business partner Henry's passing turns to outrage, and she descends on Sag Harbor determined to reclaim the house and preserve Henry's legacy.

Ruth Cooperman arrives in beautiful beachside Provincetown for her retirement, renting the perfect waterfront cottage while she searches for her forever home. After years of hard work and making peace with life's compromises, Ruth is looking forward to a carefree summer of solitude. But when she finds a baby girl abandoned on her doorstep, Ruth turns to her new neighbors for help and is drawn into the drama of the close-knit community. The appearance of the mystery baby has an emotional ripple effect through the women in town.

Chemist Elizabeth Zott is not your average woman. In fact, Elizabeth Zott would be the first to point out that there is no such thing as an average woman. But it’s the early 1960s and her all-male team at Hastings Research Institute takes a very unscientific view of equality. Except for one: Calvin Evans; the lonely, brilliant, Nobel–prize nominated grudge-holder who falls in love with—of all things—her mind. True chemistry results. But like science, life is unpredictable.

Welcome to the most tumultuous summer of the 20th century. It's 1969, and for the Levin family, the times they are a-changing. Every year, the children have looked forward to spending the summer at their grandmother's historic home in downtown Nantucket. But like so much else in America, nothing is the same.

Wedding-dress designer Jenny Tate understands the happily ever after business, yet somehow she's still involved in her ex-husband's life. In fact Owen's new wife may - inexplicably - be Jenny's new best friend. Sensing this, well, relationship isn't helping her move on, Jenny trades the Manhattan skyline for her hometown up the Hudson, where she'll be able to bask in her sister Rachel's picture-perfect family life...and hopefully make one of her own.

At the age of 29, Hannah Martin has lived in six different cities and held countless meaningless jobs. On the heels of leaving yet another city, Hannah moves back to Los Angeles and takes up residence in her best friend Gabby's guestroom. Hannah goes out to a bar one night with Gabby and meets up with her high school boyfriend, Ethan. Just after midnight, Gabby asks Hannah if she's ready to go. A moment later, Ethan offers to give her a ride later if she wants to stay. Hannah hesitates....

Malibu: August 1983. It’s the day of Nina Riva’s annual end-of-summer party, and anticipation is at a fever pitch. Everyone wants to be around the famous Rivas: Nina, the talented surfer and supermodel; brothers Jay and Hud, one a championship surfer, the other a renowned photographer; and their adored baby sister, Kit. Together the siblings are a source of fascination in Malibu and the world over—especially as the offspring of the legendary singer Mick Riva. The only person not looking forward to the party of the year is Nina herself.

If Avery Chambers can’t fix you in 10 sessions, she won’t take you on as a client. Her successes are phenomenal—she helps people overcome everything from domineering parents to assault—and almost absorbs the emptiness she sometimes feels since her husband’s death. Marissa and Mathew Bishop seem like the golden couple—until Marissa cheats. She wants to repair things, both because she loves her husband and for the sake of their eight-year-old son. After a friend forwards an article about Avery, Marissa takes a chance on this maverick therapist.

If Fiona has learned anything in life, it’s how to keep a secret - even from the father who raised her. She is the only person who knows about her late mother’s affair in Tuscany thirty years earlier, and she intends to keep it that way...until a lawyer calls with shocking news: her biological father has died and left her an incredible inheritance - along with two half siblings. 

When her 22-year-old stepdaughter announces her engagement to her pandemic boyfriend, Sarah Danhauser is shocked. But the wheels are in motion. Headstrong Ruby has already set a date (just three months away!) and spoken to her beloved safta, Sarah’s mother, Veronica, about having the wedding at the family’s beach house in Cape Cod. When the wedding day arrives, lovers are revealed as their true selves, misunderstandings take on a life of their own, and secrets come to light.

No matter what the world throws her way, at least Ruthie Beamish has the house. Lovingly renovated, located by the sea in a quiet Long Island village, the house is her nest egg - the retirement account shared with her ex-husband, Mike, and the college fund for their teenage daughter, Jem. The catch? To afford the house, Ruthie must let it go during the best part of the year. It's Memorial Day weekend, and Ruthie has packed up their belongings for what Jem calls "the summer bummer": the family's annual exodus to make way for renters.