CID jump into action when Nate and Beth witness an 11-year-old boy, Dean Clark, being abducted from a shopping centre. A clue left at the scene suggests a connection to notorious child killers Alistair Haig and Linda Johnson, but the former is dead and the latter is in prison. Neil visits Johnson with Stuart; she isn't interested in helping, but later calls Neil and requests to see him alone. She tells him about her boyfriend, Mike Wilson, and explains they split and he claimed he would prove that he loved her. Wilson's flat is raided, and clippings from the original case are found plastered all over his walls. He confesses to murdering Dean when arrested, but the biggest twist is yet to come when Dean calls his mum.