Season 4

Natasha travels to Cape Town in search of information about her father's involvement with the anti-apartheid movement during the 1960s. Later, after researching a possible connection with King George the Third, she travels with her Australian cousin Benni to Belarus where some disturbing discoveries are made about the persecution of her Jewish ancestors.

John looks into his great grandmother's parentage.

Griff Rhys Jones looks at both sides of his family's history, learning about the early British railway workers and trying to work out whether relatives really died in a train crash or there might be darker family secrets.

Carol explores her family tree.

Alistair McGowan explores his heritage from his father's side, investigating what 'Anglo-Indian' means by a journey to India.