Although Jodie is only eight years old, she is violent, aggressive, and has already been through numerous foster families. Her last hope is Cathy Glass. At the Social Services office, Cathy (an experienced foster carer) is pressured into taking Jodie as a new placement. Jodie's challenging behaviour has seen off five carers in four months. Despite her reservations, Cathy decides to take on Jodie to protect her from being placed in an institution.

Lara was seven when her birth mother died from a drug overdose. With no extended family to look after her, she was put into foster care. The care system failed Lara and now she is failing her son. Lara and her one-year-old son, Arthur, are brought to experienced foster carer, Cathy Glass, by their social worker. Lara has fled an abusive relationship and Arthur has suspected non-accidental injuries. Cathy must monitor Lara whenever she is with her son, day and night. She cannot let them out of her sight for a minute.

When foster carer Cathy Glass is asked to foster Darcy-May, a two-day-old baby, she is very concerned. The baby is coming to her straight from the hospital and will have no contact with her teenage mother, Haylea. Even more worrying, she will be brought to Cathy with a police escort, as it’s vital her extended family don't know where she is.

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....

When Stevie’s social worker tells Cathy, an experienced foster carer, that Stevie, 14, is gender fluid she isn’t sure what that term means and looks it up. Stevie, together with his younger brother and sister, have been brought up by their grandparents, as their mother is in prison. But the grandparents can no longer cope with Stevie’s behaviour, so they place him in care. Stevie is exploring his gender identity, and like many young people he spends time online. Cathy warns him about the dangers of talking to strangers online and advises him how to stay safe.