The actor wants to know more about his tough, working-class family in the East End of London, but gets more than he expected when he unearths an extraordinary lineage stretching back to the 11th century.
The actress looks into rumoured French ancestry on her mother's side of the family, uncovering a Napoleonic-era cross-Channel romance. Amanda also seeks answers to the tragic death of her paternal grandfather.
The TV presenter traces the first of her maternal ancestors to move from India to Trinidad. Liz then heads to Martinique where her paternal ancestors are said to have been slave-owning, plantation owners.
Comedian Ricky Tomlinson discovers a series of family tragedies caused by poverty, harsh working conditions and social injustice in 19th century Liverpool, which only reaffirms his (head)strong leftist beliefs.