While the Sexists rule the roost in Sainte-Foy, Huguette and her gang take advantage of their children's departure to summer camp to try to reestablish good neighborly relations.
Huguette and her gang arrive in Montreal. On the dance floor of a trendy nightclub, they meet the Lavoie brothers and experience the craziest night of their lives.
While Huguette and her gang are plunged back into a murderous spiral, Gaétan returns to Sainte-Foy to try to ensure his redemption. Will he hear the cries for help from his friends in danger?
Huguette and her clan develop a daring plan to bring down the Montreal mafia. The most dangerous mission of their lives will be the occasion for important romantic connections.
After facing a thousand dangers, Huguette and her clan celebrate Serge's birthday. During a midnight bath, their last, they will realize that love is a mystery as beautiful as it is dangerous.