Naruto 3-in-1 Omnibus Edition Vol 9 (Vols 25, 26, & 27)

Sasuke delves deep into his own past to reveal how his ideal big brother, Itachi, became the feared ninja he is today. Then Naruto is drawn into a bloody battle with his best friend. And as their battle rages on, Sasuke and Naruto find themselves to be the fiercest foes either has ever faced.