Caplan and Morlighem have intercepted a truck from a company belonging to the Russians. They uncover a major prostitution ring. They are aided by a cop from Georgia, Andreas Megrelishvili, who informs them that a war between clans of the Vor V Zakone mafia from different post-Soviet states is about to break out in Paris. Meanwhile Roxane, who wants revenge for Vogel, strikes a deal with the former prosecutor, Vanderbeke.