"Blue Bird" by Ikimono-gakari (Eps 72–77) and "Closer" by Joe Inoue (Eps 78–88).
Note: Some streaming platforms group filler episodes into "Season 4," totaling up to 65 episodes (72–136), but the official arc concludes at episode 88.
The season begins with the "Zombie Duo," Hidan and Kakuzu, capturing the Two-Tails Jinchūriki, Yugito Nii. They then invade the Land of Fire, destroying the Fire Temple to claim a bounty on the head monk, Chiriku.
While Team 10 deals with the Akatsuki, Naruto trains with Kakashi and Yamato to master his Wind Chakra Nature. He eventually develops a new, S-rank jutsu: the Wind Style: Rasen Shuriken .