In London two properties go under the hammer on a high-value case, but before any heirs can inherit the proceeds the team need to establish the identity of the deceased. With two names to research it's a tricky case of vested interest. As the mystery unfolds, researchers uncover a wealthy husband-and-wife flying duo. The stakes are also high on another case fresh on the government's Bona Vacantia list. Research leads to a family of silversmiths working in Birmingham at the turn of the century, but when war breaks out one of the girls turns her hand to farming and does her bit for her country as a land girl.