Oscar-winning actress Olivia Colman travels to India to find out more about her great-great-great-grandmother.

Oscar-winning actress Olivia Colman travels to India to find out more about her great-great-great-grandmother.

Una Stubbs never met her paternal grandparents even though they didn't die until she was in her 20s. In her quest to find out more, Una uncovers a story of illegitimacy and poverty…

Una Stubbs never met her paternal grandparents even though they didn't die until she was in her 20s. In her quest to find out more, Una uncovers a story of illegitimacy and poverty…

Actor Nigel Havers is usually cast in upper class roles, but his roots turn out to be very different.

Actor Nigel Havers is usually cast in upper class roles, but his roots turn out to be very different.

Una Stubbs never met her paternal grandparents even though they didn't die until she was in her 20s. In her quest to find out more, Una uncovers a story of illegitimacy and poverty…

Actor Nigel Havers is usually cast in upper class roles, but his roots turn out to be very different.

Hollywood actress Minnie Driver is on a mission to find out more about her late father, Ronnie, and his family's background.

Hollywood actress Minnie Driver is on a mission to find out more about her late father, Ronnie, and his family's background.

Actress Lesley Sharp was adopted when she was five weeks old. She traced her birth mother over twenty years ago and found she was the result of her mother's affair.

Actress Lesley Sharp was adopted when she was five weeks old. She traced her birth mother over twenty years ago and found she was the result of her mother's affair.

Sports presenter and former footballer Gary Lineker follows the trail of his great, great, great grandfather James Pratt, and discovers that James was a poacher in Victorian England…

Sports presenter and former footballer Gary Lineker follows the trail of his great, great, great grandfather James Pratt, and discovers that James was a poacher in Victorian England…

TV personality Nick Hewer goes back on his father's side, to his nine times great grandfather, and discovers how his family's fortunes were shaped by the English Civil War.