A 5-year-old boy, Ethan, is brought to Casey in the middle of the night after the sudden death of his young mother after a drug overdose. Estranged from her parents, Ethan’s mum had been abused by her ex-partner, and began taking drugs to cope. Ethan is obviously lost and bewildered, and regularly wakes up screaming for his mum in the night. He begins to lash out at other kids at school and his behaviour becomes more volatile.

Damian is just seven when he is taken in by foster carer Cathy Glass. His mother, Rachel, loves her three young children dearly, but she is vulnerable, naïve and unable to cope on her own. Cathy sets about helping Damian overcome his eating issues, with the hope that he will eventually return home. But when Rachel’s new boyfriend, Troy, arrives on the scene, Cathy becomes deeply concerned. She soon realises that Damian and his siblings are in great danger.

Struggling to cope with three young children, Janie turns to experienced foster carer Cathy Glass. Helping the family each morning, Cathy soon uncovers how dangerous their situation has truly become. Riley and his two little siblings, Jayden and Lola, are not safe at home. With all three children in her care, will Cathy be able to rebuild their lives – and Janie’s?

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.

Just when Casey thinks her foster care duties are done, she’s asked to look after Sam, a troubled nine-year-old with a violent streak who drove his previous guardians to release him of their care. It soon unfolds, however, that this is no simple case. Determined to get to the root of Sam’s behaviour, Casey is committed to uncover his mysterious past only to find out something far darker than she ever imagined.