Roger Goudret, a accomplice revolutionary who has stirred up Indian rebellions throughout the North, breaks out of his prison cell in Great Falls, aided and abetted by his bloodthirsty cousin “Big Bear” Pierre, and with the connivance of Sergeant Donavan, a renegade Redcoat. For Tex and Jim Brandon, this marks the beginning of a never-ending chase across the French-speaking territories of Canada, where the people nurse a bitter hatred for the English – considered as invaders – and do everything they can to protect the seditious rebels who are plotting secession.