The police investigation begins to focus on Joanna and Alistair, as Peter gets a warrant to search their house and belongings. The couple look back over the day they first arrived in Australia in a desperate effort to work out what happened to their missing child, and agree to a television interview in the hope of sharing their side of the story with the world. However, as Joanna's behaviour grows increasingly unstable, a rattled Alistair goes to the police station, determined to find out what they know.