The Reverend Harry Nettles claims there is a mosaic floor belonging to a Roman villa in the field next to his church, which is about to be built on. Nobody believes him, and the county archaeologist has agreed to the plans, so Lovejoy races to thwart the developer. He also has a dance with Jane, newly separated from Alexander...

Lovejoy buys a set of James Gillray drawings, which turn out to be copies. While trying to sell them, Eric finds a stolen statue with an aristocratic connection at the house of some friends of Jane's. Then there's a Royal Visit to consider...