This little town of Greenfalls seems to be hiding many secrets. XIII ends up discovering that his father, journalist Jonathan Mac Lane, had fled the anti-communist commissions he denounced in very hard articles. But very soon in his new home he has to face a local KKK group of people who threaten him before finally taking action! Decided to settle this story XIII and Jones will then go "to fight" and face, helped by the beautiful Judith and the journalist David Rigby, the local notables involved in this odious story.