It is 1792 and Europe is seized by political turmoil and violence. Lizzy Fawkes has grown up in Radical circles where each step of the French Revolution is followed with eager idealism. But she has recently married John Diner Tredevant, a property developer who is heavily invested in Bristol's housing boom, and he has everything to lose from social upheaval and the prospect of war. Soon his plans for a magnificent terrace built above the 200ft drop of the Gorge come under threat.