Reece is the last of six siblings to be fostered. Having been in care for four months his aggressive and disruptive behaviour has seen him passed from carer to carer. Although only 7, he has been excluded from school, and bites people so often that his mother calls him 'Sharky'.

Cathy wants to find the answers for Reece’s distressing behaviour, but he has been sworn to secrecy by his mother, and will not tell them anything. As the social worker prepares for the final hearing, he finds five different files on Reece’s family, and is incredulous that he had not been removed from them as a baby. When the darkest of family secrets is revealed to Cathy, Reece’s behaviour suddenly starts to make sense, and together they can begin to rebuild his life.