A new team of detectives, the Cold Case Squad, is put together to re-examine evidence of unsolved murders using advanced technology. In their first investigation DCI Peter Boyd has a second go at nailing the murderer of Alice Miller, a young girl who disappeared five years ago. Trouble is, the perpetrator is as keen as Boyd to act again, and abducts another girl.

Hoping that new DNA tests will reveal the killer's identity, DCI Boyd has the original abductee's body exhumed. But he soon comes to discover that the kidnapper is looking for more than money -- he wants revenge on Boyd's team.