Laura and Jayne travel to New Zealand to meet Billy’s half-siblings but they aren’t allowed to meet William Anderson himself. Laura forges an unbreakable bond with her uncle Murray and his wife Kareen.

When they return back to the UK there’s a huge shock waiting for Laura and Jayne.

A professional family tracer, who works on the British television series 'Long Lost Family', contacts them to say that she’s working on behalf of someone who believes she’s related to Laura’s late father, Billy.