It was the reign of Louis XV and, in 1750, France was at war all the time, and the people, suffocated by taxes, liked their beloved Louis less and less. When the governor of Dauphiné arrived in Saint-Étienne-de-Saint-Geoirs, he had to deal with opponents of the regime who had gathered around cooper Louis Mandrin. Mandrin becomes the vigilante who respects his king, but does not tolerate the oppression of the poor through taxation.