"Sasuke's Ninja Way" (サスケの忍道, Sasuke no Nindō) is episode 203 of the Naruto: Shippūden anime.
The battle between Sasuke and the Fourth Raikage escalates, with the Raikage growing increasingly reckless in his attacks due to his growing rage and frustration in his inability to land a debilitating hit as Sasuke's Susanoo was protecting him. Meanwhile, Tobi reveals the truth behind Itachi and his actions to a shocked Yamato, Kakashi and Naruto. Tobi then tells the story about the history of hatred between the Senju and Uchiha clans. Gaara stops the battle between Sasuke and the Raikage, but not before the Raikage has lost an arm and Sasuke is heavily exhausted. Gaara tries to convince Sasuke to turn away from darkness, but he refuses. Gaara, Kankurō, Temari, and Darui simultanoeusly attack Sasuke, but his Susanoo manages to defend him completely.