The Secret Weapon: Itachi!
Episode 15 · Naruto Shippuden
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Filler or Canon?
Naruto Shippuden Episode 15 is mixed canon/filler — it contains canon manga material with some anime-original padding. Worth watching to follow the story. Kakashi's Mangekyou debut — the timeskip's reveal that Konoha's copy-ninja now wields warp-space, reshaping every fight he's in afterward.
Series
Naruto Shippuden
Episode
015 / 500
Status
Mixed Canon/Filler
Arc
Kazekage Rescue
KAZEKAGE RESCUE · EP 1–32 · 32 EPISODESYOU ARE HERE · 15 OF 32
Episode Summary
Kakashi plays his trump to even the sky battle: the Mangekyou Sharingan, awakened in the years since Part 1, and the warp technique it grants. The 'secret weapon Itachi' framing is the episode's tension — Kakashi rationing an eye that costs him dearly, racing to disable Deidara before the strain downs him. Naruto's pursuit of Gaara's body and Kakashi's dimensional gambit converge on the bomber, who realizes too late that the Leaf brought a Sharingan user of its own to a fight he thought he controlled.
Frequently Asked
What arc is it in?
It's part of the Kazekage Rescue arc.
Can I skip it?
No, it contains canon story material you should watch.
Kazekage Rescue · Ep 1–32 · 32 episodes
001HomecomingMixed Canon/Filler002The Akatsuki Makes Its MoveMixed Canon/Filler003The Results of TrainingMixed Canon/Filler004The Jinchuriki of the SandMixed Canon/Filler005The Kazekage Stands TallMixed Canon/Filler006Mission ClearedMixed Canon/Filler007Dash, KankuroMixed Canon/Filler008Team Kakashi DeploysMixed Canon/Filler009The Jinchuriki's TearsMixed Canon/Filler010Sealing Jutsu: Nine Phantom DragonsMixed Canon/Filler011The Medical Ninja's StudentMixed Canon/Filler012The Retired Shinobi's DeterminationMixed Canon/Filler013A Meeting With DestinyMixed Canon/Filler014Naruto's GrowthMixed Canon/Filler
015The Secret Weapon: Itachi!Mixed Canon/Filler
016The Secret of the Jinchuriki!Mixed Canon/Filler017The Death of Gaara!Mixed Canon/Filler018Charge Tactic! Button Hook Entry!Mixed Canon/Filler019Traps Activated! Team Guy's EnemiesMixed Canon/Filler020Hiruko vs. Two Kunoichi!Manga Canon021Sasori's Real FaceManga Canon022A Jōnin's Hidden SkillsManga Canon023Puppet Master vs. Puppet MasterManga Canon024The Third KazekageMixed Canon/Filler025Three Minutes Between Life and DeathMixed Canon/Filler026Puppet Master vs. Puppet MasterSManga Canon027Impossible DreamManga Canon028Beasts: Alive Again!Manga Canon029New Team Kakashi: Infiltrating the BaseManga Canon030AestheticManga Canon031HeritageManga Canon032Return of the KazekageManga Canon720 episodes — canon, mixed, filler and best animation moments.
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