The game is up for hard-hitting cops Caplan, Morlighem, Roxanne and Vachewski. Their punishment? Caplan is put on remand awaiting trail, Morlighem and Roxanne are reassigned to junior posts and Tho Vachewski is forced to kiss his badge goodbye for good.The cops of Hauts-de-Seine's District Police Department continue to fight crime in the capital. Their next case leads them to the outskirts of Paris where they must hunt down the culprits of a brutal killing spree. These men are out for revenge and will stop at nothing to punish those who have betrayed them.