The actress grew up in London but knows her father's family originated in Poland and has long suspected that they suffered during the Holocaust. She uncovers a story of separated family members trying to keep one step ahead of the Nazis.
Actor Derek Jacobi grew up in Walthamstow, where his parents ran a market stall. But a clue in his mother's family tree hints at a more colourful past - his great-grandmother's name was Salome Laplain. Armed with this tantalising detail, Derek discovers that, far from being from humble roots as he had thought, he is in fact descended from a wealthy French Huguenot fleeing religious persecution in France - who had connections to Protestant royalty on this side of the channel.
Jerry knows that her family were originally from Oldham but wants to know how they ended up in America. She discovers a story stretching from the cotton mills of Lancashire to the Texas plains and a possible connection to a folk hero.
The choir master knows that his immediate family are immersed in music, but wishes to know how far back this 'musical gene' goes on his family tree. He discovers an ancestor who performed before King George V and an Irish theater impresario.
The actress wants to know more about her father's family but has little to go on other than the name of a house in Scotland and involvement with the church. However, she discovers a story of convicts and transportation to Tasmania.
The journalist sets out to discover if there is any truth in the story that his ancestors came to Britain with the Norman invaders. Along the way he uncovers the story of a Tudor ancestor accused of treason.
The journalist and TV presenter travels to India to investigate the story of the maternal grandfather she never met. Her family have told her that he suffered a great tragedy at the time of the Partition of India.
The writer and actor is well known for his taste for the ghastly and the ghoulish, but even he is surprised to trace his ancestors back to the wilds of Northern Ireland and discover that his family contained vampire slayers.
The actress uncovers the story of a secret lover, an illegitimate child and a landmark divorce case as she investigates her three-times great grandmother. But the scandal doesn't stop there as she looks into the life of the Delavel family.