Freddie Flintoff and Jamie Redknapp face a new kind of challenge - discovering each other's family history using DNA and genealogy.
TV personalities Amanda Holden and Alan Carr embrace their family history on a road trip that covers Cornwall, London, and Erith.
Father and son duo Martin and Roman Kemp take a family road trip of a different kind, one that delves into their family history that spans North London and the North East.