A fascinating four-part series exploring modern day high society through four historically prominent families – the Rothschilds, the Shaftesburys, the Marlboroughs of Blenheim and the March family of Goodwood. Historically these four families were a ruling elite in the UK, enjoying power and privilege based on centuries of inherited wealth and grand landed estates. Today, though their political influence may have waned, the descendants still own large chunks of land, live in historic buildings and continue to inhabit a world where succession is of paramount importance.