The last episode in the series that offers the British public the chance to connect directly with their family history. In the search for information about her mysterious mother, retired school teacher Mary Perkins is stunned to discover a family she never knew about. London bus driver Christine Ball finds out if she's related to famous detective Chief Inspector Abberline, who led the investigation into the Jack the Ripper case. And historian and law lecturer Onyeka Nubia helps banker Phyllis Elliott investigate whether her roots go back to an escaped Barbadian slave.