1994. Frank Paterno (Sergio Castellitto), a Montreal mafia boss, hopes to legitimize his criminal operations by investing $180 million in an ambitious bridge project that would connect Sicily with southern Italy. First, however, he has to recover the necessary funds from his Greek creditor. Frank entrusts this mission to his protégé Vincent, the son of tailor Henri Gamache, who has been dressing the Paternos for three generations. But when Vincent's plan to smuggle millions in drugs out of Venezuela goes awry, his ruthless tactics ignite a war between the two families.

Based on the non-fiction bestseller Mafia Inc: The Long, Bloody Reign of Canada's Sicilian Clan by André Cédilot and André Noël.