Davina McCall and Nicky Campbell are back to help reunite some more long lost families, and first up tonight are David and Paul Shannon. They're searching for their dad, a miner who disappeared from their lives when he left the family home in Liverpool for South Africa. Meanwhile Julia Evans is on the hunt for her mother, whom she believes may have been cast out of the strict Christian community she grew up in in South Wales. Did her mum really walk away? Or was she forced to leave?