Cassie and Erin are sisters. They are close - in age, looks and personality - but there is one crucial difference: Cassie is adopted. At 17, Cassie sets out to find her birth mother. She is hungry for the truth, but she discovers her adoption was far more complicated than even she could have imagined. In uncovering her real identity Cassie learns her adoptive parents have kept a terrible secret from her her whole life, which now threatens to destroy everything she has ever held dear.

When a car carrying five teenagers home from a party crashes into a brick wall, the consequences are devastating - not just for the young people directly involved, but also for their families, their friends and the wider community. By 2:30 a.m. the whereabouts of most of the kids were known. Most - but not all. Because, for a small handful of parents, there was no response to their frantic calls and messages.

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 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.