When Ava’s partner Will is diagnosed with a terminal brain tumour, the doctors give Will one chance to survive - an operation which means he will lose his recent memory. Ava begs him to take the chance, sure that she can cope with Will forgetting her. After all, they have something very special to live for. But they are also keeping a heart-breaking secret, and if Will loses his memory, Ava will have to carry that secret alone. Can they rebuild their love from scratch, or will their secrets and past come between them?

It’s a miracle when Katherine’s baby boy is born healthy. But his twin sister doesn’t survive, and when Katherine is told she can’t have any more children, the loss is almost too much for her to bear. Katherine always saw herself having a big family: She remembers how the loneliness of being an only child used to overwhelm her, and she is desperate to adopt a sibling for her son. But her husband, Davis, won’t agree. He worries that Katherine will struggle when the new baby arrives.

It is past 10 o’clock on a cold Friday night when Rebecca and her husband Jack’s doorbell rings. Outside is a woman who introduces herself as Jack’s ex-girlfriend, Cara. And she’s holding the hand of a shivering, blue-eyed, four-year-old girl who she claims is Jack’s daughter. Rebecca is shocked to discover he has a child from his last relationship - even one he hadn’t known about. Because becoming parents isn’t part of their life plan.

Single mother Beth loves her seven-year-old son Dylan with all her heart. He’s her world. But life with Dylan isn’t easy — and his emotional issues push Beth to her very limit. When a misunderstanding leads Dylan to be taken into foster care, she is determined to do whatever she can to get him back. Mother of two, Ally has always dreamed of fostering — it feels like her chance to give back when she has been so lucky in life. But when Dylan joins their family, Ally finds herself struggling to balance his needs with those of her own children and husband.

When Mara Hughes inherits her late mother’s tumbledown beach house overlooking the bright, sandy sweep of Magpie Cove, it couldn’t have come at a worse time. With her marriage on the rocks and her husband threatening to take the family home, the beach house - with all the bittersweet memories it holds - might be the thing that finally sends Mara’s world crashing down around her. She tells herself she’ll spend only a few days there, sell it, and move on to rebuilding her life. 

When Madeline's six-year-old daughter Tilly collapses one Sunday night, Madeline’s world is turned upside down. Racing to the hospital, she imagines the worst scenarios in her mind, but when they arrive the doctors say that Tilly is fine. Madeline’s ex-husband Adam and her best friend Laura think Madeline is being overprotective, that Tilly fainted because of her fussy eating. But Madeline is sure something is seriously wrong with Tilly. She can feel it. And she believes that a mother’s instinct is never wrong. 

Forced home to Fog Harbor, California, to look after her little sister, criminal psychologist Olivia Rockwell is struggling to adjust to life in a town so small she can hardly breathe. Until, at church one morning, the sound of a scream leads her to the body of a missing local teacher in the shallows nearby. All the evidence points to Olivia’s most threatening patient, Drake, who is safely locked up behind bars.... 

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

Virginia, 1933: Lauren Greenwood was born to look pretty and land a rich husband. For her and her high-society family, it’s easy to forget that America is in the devastating grip of the Great Depression, where children run wild in the streets, endless queues for soup kitchens line sidewalks, and desperation hangs in the air. But when a young servant comes to Lauren, pregnant and begging for help, her world crumbles. Someone she loves is responsible, and when she finds out the shocking truth she must decide: Protect the Greenwood name or be cast out? 

Berlin, 1989. Siblings Rune and Lotte are shaken awake by Mama and told to follow her quietly into the night. Last time they snuck away from Papa, with Mama bruised and broken, they were back within a week. But this time they are starting a new life, Mama says - where nobody can ever hurt them again. Ten years later, the memories of their escape are blurry; Mama is long gone, and the siblings are back at Papa’s house.

All Zoey’s happiest childhood memories are of her great-aunt Ivy’s rickety cottage on Dune Island, being spoiled with cranberry ice cream, and watching the tides change from the rooftop. Now, heartbroken from a recent breakup, Zoey can see her elderly aunt’s spark is fading and decides to move to the island, so they can care for each other. When she arrives to find her cousin, Mark, sitting at the solid oak kitchen table, she knows why Aunt Ivy hasn’t been herself. Because Mark - next in line to inherit the house - is pushing Ivy to move into a nursing home.

1945: Two sisters give birth to two little girls on the same night, huddled under blankets, deep in the black woods that surround their village. They hold their babies close as footsteps approach. If they make even the slightest sound, the German soldiers will find them.... 

Eight-year-old Leila Smith has seen and heard things that no child should ever have to. On the Hawthorn Estate, where she lives, she often stays out in the playground long after the other children have left, just so she can avoid her own home for longer. But what Leila doesn't know is that someone has been watching her. One day, she disappears without a trace. The police search start a nationwide search, but it's as if Leila has vanished into thin air. Who kidnapped her? What do they want? Will she return home safe and sound, or is she lost forever?

Childhood friends Hannah, Maya, Blue and Renee share a bond that feels more like family. Growing up, they had difficult home lives, and the summers they spent vacationing together in Montauk were the happiest memories they ever made - campfires on the beach, salt-spray hair, and the effervescent excitement of the bright future ahead. Then, the summer after graduation, one terrible night changed everything. Twelve years have passed since that fateful incident, and during that time, their sisterhood has drifted apart, each woman haunted by her own lost innocence.

It’s the 1960s, and Jennifer Howells is a young woman with the world at her feet, just on the cusp of leaving her Welsh village for an exciting life in the city. Then the contents of an inconspicuous brown envelope turn Jennifer’s world upside down. But Jennifer’s experience with the excesses of '60s culture leaves her no closer to her true identity. She soon realises she’ll have to travel further - first to Cardiff, then across the ocean to Sicily - if she wants to find out who she really is....