Jose war früher in der italienischen Armee bei den Carbinieris. Nach Jahren trifft er sich in einem Restaurant mit einem seiner damaligen Kollegen. Plötzlich erschüttert eine Detonation das Restaurant, Scheiben splittern. Zwei Fratello-Pärchen nehmen einen Mann gefangen, den sie für den Attentäter halten. In der Wohnung des Mannes finden sie Sprengstoff aus dem Waffenbestand der Armee. Ein hoher Offizier der Armee wird verdächtig mit Waffen zu handeln…
Giuseppe reunites with an old friend from the Italian military, with whom he reminisces on the past, and especially his sister Enrica, until a PRF terrorist detonates a bomb near their restaurant. After his capture by Beatrice and interrogation by Rico reveals a large supply of plastic explosive, supplied to the PRF through the military, Section Two is tasked with finding out the identity of the traitor. The trail eventually leads to Giuseppe's old acquaintance, who is killed in a raid by the Fratello, badly upsetting Giuseppe, and his superior, Colonel Garnier. Meanwhile, Henrietta is troubled both over feelings that she is being overly selfish with Giuseppe and his general depression. She and Rico assassinate the Colonel and his second-in-command at a performance of Tosca, and Giuseppe reaffirms his affection for Henrietta, gently pinching her on the cheek as he used to do with his sister.
Giuseppe incontra un suo vecchio amico in un ristorante, proprio quando scoppia una bomba nelle vicinanze. Beatrice riesce a catturare il responsabile, che viene interrogato da Rico e rivela che alcuni militari forniscono il Movimento delle Cinque Repubbliche di esplosivi. Giuseppe scopre che il responsabile è il suo vecchio amico, e lo uccide. Henrietta intanto è turbata per via dei suoi sentimenti verso Giuseppe, mentre Rico uccide a Castel Sant'Angelo, durante la Tosca, un colonnello dell'esercito.
ジョゼはかつての同僚・軍警察のマルカントニオとローマ市内のリストランテで、数年ぶりの再会を果たし喜んでいた。しかしそれも束の間、リストランテのすぐ前の通りで、五共和国派(パダーニャ)の爆弾テロが起こる。一方、爆弾テロの犯人を追っていたベルナルド・ビーチェ組とジャン・リコ組は、犯人の部屋から軍隊でしか手に入らない高性能爆薬を見つける。軍関係者が関わっていると判断し、調査を進める2課員たち。モリーゼ州の山中で武器を輸送する怪しい軍用トラックを見つけたジャン・ジョゼたちは、銃撃戦の果てに鎮圧に成功する。だが、そのトラックには乗っていたのは、絶命したマルカントニオだった。ジョゼはかつての同僚の裏切りに気を落とす間もなく、彼らの黒幕であるガニエ大佐の暗殺を命じられる。
