When six-week-old Jasmine is placed in her care, foster mother Maggie Hartley is delighted to have a baby in the house again. Maggie's been given temporary custody of Jasmine after social services were concerned that the baby was failing to thrive and develop. With Maggie's love and care, Jasmine soon flourishes into a healthy, happy baby - but it is clear that all is not quite as it seems with her mum, Hailey.

Having recently lost his mum to cancer, when eight-year-old Tom comes to live with Maggie, he is scared and alone. Tom has been taken into care following concerns from his teachers about his dad Mark's ability to cope as a single parent following the death of his wife. As a former soldier, Mark has resorted to his military training in order to cope with his young son, forcing him to scrub the floors until his hands bleed and perform repeated push-ups as punishment for his misdemeanors. 

Jackson is aggressive, confrontational and often volatile. His mother, Kayla, is crippled with grief after tragically losing her husband and eldest son. Struggling to cope, she puts Jackson into foster care. Cathy, his carer, encourages Jackson to talk about what has happened to his family, but he just won’t engage. His actions continue to test and worry everyone. Then, in a dramatic turn of events, the true reason for Jackson’s behaviour comes to light....

Three-year-old Lexie, five-year-old Amelie and thirteen-year-old Leo come to Maggie after Leo confesses to a teacher that his mother's addiction problems and her latest violent relationship has left him as the sole carer to his younger sisters. Maggie welcomes the three children into her home and is touched by the gentle care Leo shows to the two little girls. It is clear that Lexie and Amelie adore their big brother and rely on him for comfort and reassurance.

Tilly hates her stepfather, Dave. He abuses her mother, but she refuses to leave him. Frightened for her own safety, Tilly asks to go into foster care and is placed with Cathy. Tilly arrives with a graze on her cheek, and Cathy becomes increasingly concerned by Dave’s behaviour, especially when she learns he has been showering Tilly with gifts. While she’s busy looking after Tilly and trying to keep her safe, Cathy is also worried about her own daughter, Lucy. 

Fourteen-year-old Hannah comes to live with foster carer Maggie Hartley after her mum pleads with Social Services to take her into care, unable to cope with her daughter anymore. Previously a good student, a loving daughter and sister, Hannah is now playing truant, drinking and taking drugs. Angry and mistrustful, it seems that nobody can reach this troubled teenager. 

Ruth was a ghost of a girl when she arrived into foster mother Maggie Hartley's care. Pale, frail and withdrawn, it was clear to Maggie that Ruth had seen and experienced things that no 11-year-old should have to, that she had been conditioned to 'see no evil, speak no evil'. Ruth is in desperate need of help, but can Maggie get through to her and unlock the harrowing secret she carries? Through love, reassurance and patience, Maggie starts to unravel Ruth's painful past.

When 16-year-old Jess arrives on foster carer Maggie Hartley's doorstep with her newborn son, Jimmy, she has nowhere else to go. Arriving straight from the hospital, having just given birth, Jess is like a rabbit caught in the headlights. Scared, alone, and practically a child herself, she is overwhelmed with the responsibility of caring for a newborn without the support of a loving family or her beloved boyfriend. With social services threatening to take baby Jimmy into care, Jess knows that Maggie is her only chance.

Maggie faces one of the most challenging cases of her career when a young, orphaned Syrian girl comes to live with her. Barely able to communicate without a shared language, Maggie must battle to reach the vulnerable refugee and help her to start to overcome the traumas she has endured. But there is more horror to come when Maggie starts to suspect that the young girl is being groomed by relatives back in Syria to return and join ISIS.

Fourteen-year-old Shazia has been taken into care after a conversation at school leads her teacher to suspect that the teenager's family are planning to send her to Pakistan for an arranged marriage. To her family's fury, Shazia is sent to live with foster carer Maggie Hartley whilst social services investigate. But with Shazia denying everything and social services unable to find any evidence to support the teacher's fears, Shazia is allowed to return home. But a few weeks later, Maggie is woken up in the middle of the night by a phone call from a terrified Shazia, who has managed to escape the family home through a window. 

When Cathy is told about Melody’s terrible childhood, she is sure she’s heard it all before. But it isn’t long before she feels there is more going on than she or the social services are aware of. Although Melody is angry at having to leave her mother, she also worries about her obsessively - far more than is usual. Amanda, Melody’s mother, is also angry and takes it out on Cathy at contact, which again is something Cathy has experienced before. When Amanda misses contact, it is assumed she has forgotten, but nothing could have been further from the truth.

Oskar's school teacher raises the alarm. Oskar's mother is abroad, and he has been left in the care of friends, but has been arriving in school hungry, unkempt and with bruises on his arms, legs and body. Experienced foster carer Cathy Glass is asked to look after him, but as the weeks pass, her concerns deepen. Oskar is far too quiet for a child of six and is clearly scared of something or someone.

Evie and Elliot are scrawny, filthy and scared when they turn up on foster carer Maggie Hartley's doorstep. Aged just two and three years old, this brother and sister have hardly set foot outside their own home. They have been prisoners, locked in a world of abuse, violence and neglect. Maggie soon realises that Evie and Elliot are lacking the basic life skills we all take for granted, and the outside world terrifies them. Gradually unlocking the truth of their heartbreaking upbringing, Maggie tells their shocking true story.

Can I Let You Go? is the true story of Faye, a wonderful young woman who may never be able to parent her unborn child. Faye is 24 and pregnant and has learning difficulties as a result of her mother's alcoholism. Faye is gentle, childlike and vulnerable and normally lives with her grandparents, both of whom have mobility problems. Cathy and her children welcome Faye into their home and hearts.

Aneta and Filip, the children’s parents, are distraught when their children are taken into care. Aneta maintains she is innocent of harming them, while Filip appears bewildered and out of his depth. It’s true the family has never come to the attention of the social services before, and little Kit and Molly appear to have been well looked after, but Kit has a broken arm and bruises on his face. Could it be they were a result of a genuine accident, as Aneta is claiming?