Arc 11The Pollution and the Uchiha
Naruto uncovered a spreading Spiritual Pollution scheme linked to Kabuto and helped communities resist it by relying on their own strength. As Kabuto broke with Orochimaru, Sasuke confronted Itachi, whose death left Naruto to take Sasuke into care and promise him a darker truth.
- Mei Terumi warned Zabuza that Kisame and Deidara were targeting the Three-Tails, while Sasori agreed to teach Sunagakure's orphans puppet techniques.
- Kisame returned to Kirigakure and clashed with Yagura, Zabuza, Naruto, and their allies as Pain revealed the encounter was a trap and joined Ōnoki and A in attacking Naruto.
- Naruto summoned Ultramarine Eureka and led his forces against Pain, Ōnoki, and A before Pain's retreat left Naruto to investigate the Black Rod's nonhuman energy and signs of Chaos.
- Naruto discovered that Kabuto and Orochimaru were spreading Spiritual Pollution through Sealing Ink, then helped affected communities resist and purge it rather than trying to save everyone himself.
- Kabuto offered Nagato and Konan a Purification Serum in exchange for Akatsuki's help against Naruto, while he later broke with Orochimaru and set out to pursue his own answer.
- Sasuke confronted Itachi at the Naka Shrine, broke free of Tsukuyomi with his armor, and nearly killed his brother before Itachi removed the Pollution and died after tapping Sasuke's forehead.
- Naruto claimed Itachi and Sasuke as Konoha First Arsenal assets, took Sasuke to the special care ward, and told him that the truth about Itachi was uglier than the familiar account.