Boulton and Woods investigate the kidnapping of a teenage girl. When they tail the girl's stepfather as he attempts to pay a ransom of £1,000, Woods is recognised by the suspect, whose escape leads him into the path of a moving car. However, when the young girl comes to visit the victim in hospital, Boulton discovers the missing teen is the victim's girlfriend – and that her stepfather invented the kidnapping to cover up the fact he has been sexually abusing her.