Former Deputy Prime Minister Michael Heseltine takes an emotional journey back to his childhood home of Swansea to uncover the story of his Welsh ancestors.

Along the way, he uncovers a shocking family story of harrowing poverty and disease.

International singer Olivia Newton-John makes an emotional journey to Wales to discover the extraordinary story of her Welsh ancestry, beginning in her father's home town of Cardiff.

Best known for playing Yorkshire vet James Herriot in All Creatures Great and Small, actor Christopher Timothy makes an emotional journey back to his childhood home of North Wales to discover the truth about his Welsh ancestors.

Starting in his family's home town of Bala, he uncovers a story of wealthy and privileged ancestors, whose secrets stretch back over 300 years.

Actor Michael York, best known for playing quintessential Englishmen, makes an emotional journey to Wales to learn more about his Welsh forefathers.

Starting in his father's home town of Llandovery in west Wales, Michael's journey brings him closer to his late father as he uncovers the untold family story of his wartime love and heroism.