Suddenly the rural tranquillity of the Camargue is under threat. The isolated sandy beaches of the coastline are being targeted as clandestine landing grounds for illegal immigrants. Some of the local farmers decide to take the money and get involved. Additionally, the area finds itself in the middle of a vicious and bloody turf war between the two major criminal heads in the South of France; a war fuelled by the intense personal hatred between the two men.

This is the challenge faced by Martine Aubanet as she takes over control of Les Frères, the centuries old society of Camargue farmers that have managed local affairs since the Romans were here two thousand years ago.

Not for the first time Peter Smith and Arthur the greyhound are called upon to bring their own peculiar talents to bear and find a solution to restore peace to the region.