In Holland and Germany, Rory Bremner delves into the wartime experiences of the father he didn't know very well.

Fiona Bruce discovers the sad truth behind her great-grandfather's mysterious death, and returns to her family's ancestral home.

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Actress Zoe Wanamaker traces the roots of her family back to the Ukraine via America and the anti-communist witch-hunt that caused her father Sam to flee to the UK.

Actor Kevin Whately discovers that his ancestors were amongst the richest and most powerful men of the 17th century.

Davina McCall makes some intriguing and shocking discoveries as she delves into her family's past, hoping to learn more about her maternal French heritage.

Known for his outspoken views, Radio 1 DJ Chris Moyles finds himself getting unexpectedly emotional as he goes back to his Irish roots.

TV presenter Kate Humble knows little about her family history. What she does know is that her paternal grandfather was a test pilot, and she believes her maternal grandfather ended up in Colditz. On the trail of her grandfather Bill Humble, who was a test pilot during the Second World War, Kate visits the RAF Museum. She is astonished to discover what a legend Bill was in flying circles, and is amazed to see his daredevil flying for herself in archive film held there.

Actor and comedian David Mitchell goes in search of his Scottish roots.

Liverpool-born Kim Cattrall sets out to solve a family mystery that has endured for more than seventy years, the disappearance of her grandfather.

With his dad having died when he was 10 and his parents having divorced some years before, Martin Freeman tries to find out the paternal side of his family history.

Andrew Lloyd Webber is astonished to uncover stories from his family’s history that uncannily parallel his own life, including an ancestor with a famous cello-playing brother!

As actress Claire Foy delves into her family tree, the personal testimony she uncovers reveals stories of tragedy and an accusation of murder that bring communities together.

Adventurer Bear Grylls discovers the stories behind the top secret documents hidden in his grandfather’s wartime trunk and is delighted by a Scottish royal connection.

Kevin Clifton investigates the rumour of an ancestor from Canada’s First Nations, taking him on an extraordinary journey to the country’s remote 18th-century trading posts.

Chris and Xand van Tulleken discover more about their Dutch heritage. Their research uncovers stories of ambition and true love but also a connection to a shameful part of history.

Comedian and actor Emily Atack knows she is from a long line of larger-than-life entertainers. Her mum is singer, actor and comedian Kate Robbins and Paul McCartney is Emily’s grandmother’s cousin, making him Emily’s first cousin twice removed. Recalling fun days out with the McCartney family when she was little and how Grandad Mike turned every opportunity into a comedy show, Emily sets out to find out more about her showbiz genes.

Dev Griffin learns about his ancestry, including momentous stories from Ireland and some very personal details from his great-grandparents' lives in Jamaica.

Chris Ramsey has always felt lucky, so he’s delighted to learn it runs in the family as he uncovers the stories of ancestors who survived a deadly WWI battle and won a lottery.

Lesley Manville is moved to discover a family story of enduring love and is delighted when an ancestor’s involvement in a riot reveals new relatives in Australia.

Worthy of a film plot line, Andrew Garfield’s family history takes him from Nazi-occupied Poland to early Hollywood glamour as he uncovers stories which veer from tragedy to hope.

In an unexpected twist, Mishal Husain’s journey into her family tree takes her from India to the east coast of the USA, where she discovers some revolutionary ancestors.

Fifty years after Jamaica gained independence from Britain, former footballer and sports pundit John Barnes sets out to investigate the extraordinary role his grandfather, Frank Hill, played in the island's struggle for self-rule. John discovers how his grandfather became the subject of secret telegrams, and why he was interned by the British during World War Two. John also uncovers how, from being at the heart of Jamaican politics, Frank fell from grace among his political allies.

Irish actress Dervla Kirwan became a household name in the hit series Ballykissangel. But she has never spoken about her great-uncle Michael Collins, a national figure who changed Irish history and fought to establish the Irish Free State. Dervla wants to find out how her grandfather Finian, Michael's nephew, fits into the events shaped by his famous uncle.

Holby City actor Hugh Quarshie was born in Ghana, but moved to Britain with his parents as a child. He knows there is Dutch ancestry in his family, but doesn't know where the bloodline began. To find out, he visits his uncle in Ghana, where he discovers a new relative and learns some interesting facts about his mother. Finally, he travels to the Netherlands to unravel the truth.