Heir hunters investigate a deceased person who doesn't seem to exist, while a sailor risks all for the sake of love. As researchers dig through census records, they uncover a grandfather who worked on the early London Underground and are led to an heir whose surprise encounter brings fond childhood memories flooding back.
On another case, a name change proves a challenge to the team and leads to a family mystery stretching back over a hundred years. Discovering female relatives who made lace in the Midlands, one relative gets the surprise of a lifetime.
