In a tribute to Liverpool's Cilla Black, we re-visit her ancestral connections with north Wales.

Cilla Black discovers that her family owe as much to Wales as they do to Liverpool as she traces the story of her family's history in Wales back through five generations. Cilla reveals a history of illegitimacy, servitude and destitution and also learns that she is not the only Priscilla to be born into her family.

Donny Osmond traces his ancestors back to Wales. He discovers the extraordinary story of his great-great-grandfather, John Martin, a heroic surgeon who saved the lives of many workers in Merthyr's iron industry. Donny also has the chance to surprise some living members of his family in Wales with the news that he is their cousin.