Courtney's social worker described her as one of the 'Unfosterables'. Grace and Andy were determined to prove her wrong, but as inexperienced foster carers they were taking on an uphill battle. Neglected by her alcohol dependent mother, Courtney had come under the influence of a controlling boyfriend with a drug dealing sideline and her erratic behaviour had taken a turn for the worse. When her boyfriend goes to prison for his part in an armed robbery, Grace feels they have an opportunity to make a difference in the teenager's life. But Courtney is used to looking after herself. With one failed foster placement behind her already, is there any hope she will settle or is she planning to live up to the 'Unfosterable' label?