In Australia, Gerry hopes to meet his mother for the first time. Despite being almost sixty, he has spent his whole life believing he's an orphan.  In Liverpool, Mary brews a good, strong pot of tea. Nothing posh. But she's as nervous as a pig at a butcher's. Determined to uncover his past, Gerry and his daughter Sally embark on an extraordinary journey home – halfway across the world – in a precarious bid to bring their family together.