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. 

I walk slowly to the kitchen counter, staring out the window as Ceci rocks back and forth on the swing. My beautiful darling girl has been through so much already. How can I tell her that her life is about to change forever? When the woman from the hospital tells me that my husband Drew is in a coma my world comes crashing down. In an instant, I see our whole married life flashing before my eyes: the way our children ran into his arms when he came home from work, the way his face lit up when he read to them.

As soon as we sat on the ride I knew something was wrong. I couldn’t relax. I couldn’t hear the theme park music, the giggles of my two other children. I’d left my baby in someone else’s care. And I knew I’d made a mistake... With her two beautiful children and newborn baby Ella, Lily’s life is full of love and laughter. She gave up her job to be a stay-at-home mother, and though she sometimes envies the freedom of best friend Hannah, Lily wouldn’t trade it for anything.

I’ve lived on this quiet street for years, in the same house I once shared with my husband and our beloved daughter, Chloe. Now they’re both gone and my home, that used to be filled with laughter, is too quiet, too still. When a little boy I don’t recognize knocks at my door, without a parent in sight, I’m shocked. He trembles with nerves, and I tell him I can help find his mother. But I’m not prepared for what he says next. I’m left frozen, heart pounding in my chest.

When I found out I was pregnant, I couldn’t have been happier. Ever since my own father died, I’d felt utterly lost. But you changed everything. Finally, I had found my purpose: to be the best mother I could be. But I couldn’t–wouldn’t–tell anyone who your father was. I could never forget the look in his eyes that day. The betrayal written across his face. All the things we didn’t say and the secret that tore us apart.

Ava’s daughter, Carly, is everything a 10-year-old should be: energetic, creative, and the light of her parent’s lives. But when she starts stumbling down stairs and walking into doors, Ava wants to rush to the doctor. Her husband, Rick, is sure she’s fretting over nothing - kids can be a little clumsy sometimes. But Ava’s instinct is telling her something is seriously wrong. Ava takes Carly to see a specialist and is given a devastating diagnosis: a rare genetic condition that will change her future forever.

I count down the days until we can leave the city behind and return to the beach house. Where James and Katie can roam free over the dunes, like they did as children, and Peter will swap his six a.m. starts for the stacks of fluffy pancakes he lovingly serves up for our family breakfasts. These sun-drenched, golden days, just the four of us, are what I hold on to all year long. But this summer, Katie’s best friend will be coming with us. I tell myself the girls will have fun together, pushing aside the doubts I have about this uninvited guest. Isa. 

When Catriona loses her baby girl at birth, it shatters her. But like a light in the darkness, Catriona is given the chance to adopt beautiful baby April, and now she cannot imagine life without her. The family's picture-perfect home is filled every day with April's warm giggles and joyful games. But when her daughter is just eight years old, Catriona gets the call that she has been silently dreading. April's birth mother, Lauren, would like to meet her.

Sisters Laura and Penny were once close, bonded together after the early death of their mother. Laura always had her younger sister’s back until one day everything changed and Penny disappeared. Twenty years later Laura finds herself alone and at a crossroad in her life; questioning her marriage and her future. Meanwhile Penny has spent her whole life running away from her problems until one day she is forced to stop and face the shocking truth. When Penny turns up on Laura’s doorstep late one stormy night, Laura is immediately suspicious of her sister’s motives.

I glance over at Lou’s house as I pull onto my drive, surprised that it is still in darkness. Lou and the kids should have been home from school long ago. I should be preparing a delicious meal for my children as they tell me about their day. But Lou’s car is nowhere to be seen....

It is a day that starts like any other day. It’s cold outside, but the sun is shining. It feels like a day that is full of hope. But two mothers’ lives are about to come crashing down when Samantha gets a call saying her 15-year-old daughter, Keira, has been hurt and is in a coma. And then Julia’s daughter, Grace, comes home covered in blood, refusing to speak. Once, the two girls had been best friends and completely inseparable. But eventually the girls had drifted apart. Now their lives have collided again. And Julia is forced to ask herself: What could Grace be hiding? 

Cate grips the note with trembling hands, looking down at the delicate bundle on her doorstep. As she reaches down to the baby, she knows she has finally got everything she’s ever wished for. But is he hers to take? Cate tries not to cry as she closes the door on the nursery room once again. All she has ever wanted is to be a mother. Cursed with a medical condition that means she is unable to have children, her only option is to wait for a call from the adoption center. But that call feels like a lifetime away.

No matter what life throws at me, I have always been able to depend on my best friend Rachel. In nineteen years of friendship, we’ve never argued or fallen out. So, I’m wracked by guilt over my decision to keep her daughter Chloe’s pregnancy a secret. I don’t want to break Chloe’s trust but, if I don’t say anything, it could destroy my relationship with Rachel. I hoped Chloe would find the confidence to tell her mom, but days have passed, and the guilt is eating me alive. As much as I want to support Chloe, I don’t know how much longer l can lie to my best friend.

When their last embryo is accidentally given to another woman, Quinn and James reminisce about the child they gave up 4 years prior... All Quinn has ever wanted is to be a mother. Although her husband James brings her comfort, the knowledge they have no embryos left, and that their child is out there being raised by another family, is tearing them both apart. When the clinic tells Quinn and James they have the right to spend time with little Emily, at first they hesitate. Of course, they would never want to come between Emily and her loving family.

Anna works two jobs to get herself through college and never, ever talks about her family. It’s easier to keep her distance from everyone until she can finally leave her old life behind. That is, until chance throws her together with Gabe....