It's 1990. In Dalton, Maine, life goes on. Rose goes to work at the diner every day, her bruises hidden from both the customers and her two young boys. At a table she waits, Dr. Richard Haskell looks back on the one choice that's charted his entire life, before his thoughts wander back to his wife, Trudy, and her best friend. Trudy and Bev have been friends for longer than they can count, and something more than lovers to each other for some time now—a fact both accepted and ignored by their husbands.

Justine is 21 years old, and has lived with her grandparents and her cousin Jules since the death of her parents. As a nursing assistant at a retirement home, she spends much of her days listening to her residents’ stories. After bonding with Hélène, an almost 100-year-old resident, the two women slowly reveal their stories to one another. Whilst Justine helps Hélène to relive her memories of love and war, Hélène encourages Justine to confront the secrets of her own past and the loss she keeps buried deep within.

Haven Ambrose, a trailblazing nautical archaeologist, has come to the sun-soaked village of Positano to investigate the mysterious shipwrecks along the Amalfi Coast. But Haven is hoping to find more than old artifacts beneath the azure waters; she is secretly on a quest to locate a trove of priceless gemstones her late father spotted on his final dive. Upon Haven’s arrival, strange maelstroms and misfortunes start plaguing the town. Is it nature or something more sinister at work?

From the porch of his home, Charles Lamosway has watched the life he might have had unfold across the river on Maine’s Penobscot Reservation. On the far bank, he caught brief moments of Roger and Mary raising their only child, Elizabeth from the day she came home from the hospital to her early twenties. But there’s always been something deeper and more dangerous than the river that divides him from this family and the rest of the tribal community. It’s the secret that Elizabeth is his daughter, a secret Charles is no longer willing to keep.

In 1938, a dead whale washes up on the shores of remote Welsh island. For Manod, who has spent her whole life on the island, it feels like both a portent of doom and a symbol of what may lie beyond the island's shores. A young woman living with her father and her sister (to whom she has reluctantly but devotedly become a mother following the death of their own mother years prior), Manod can't shake her welling desire to explore life beyond the beautiful yet blisteringly harsh islands that her hardscrabble family has called home for generations.