Episode 321 sees Naruto's shadow clones spread across every front to turn the tide against the White Zetsu Army, while Kabuto plays a shocking new card by dragging Madara Uchiha back onto the battlefield.
With White Zetsu clones tearing through every front, the Allied Shinobi Forces are barely holding on until Naruto reaches the fighting. As the Daimyō Protection Squad trades blows with Black Zetsu elsewhere, Naruto's shadow clones fan out to each battlefield, and the Alliance gradually claws back the advantage. When word of his impact filters into headquarters, Tsunade shoots the Raikage a smug look, which he coolly waves off. The Sensor Division is set to track the masked Madara, and Ao reports that he has begun moving alongside a squad of reincarnated jinchūriki.
Near the remaining Fourth Division, Kabuto plays his ace, having Mū call up one more fighter. The summoning coffin is blasted away and Mū only just avoids the strike, prompting a sensor to raise the alarm about newcomers. The Alliance is stunned to find Mū perched atop the rock, which leads Ōnoki to grasp that the Second Tsuchikage had split himself in two before being sealed. When the second figure is unveiled as Madara Uchiha, Gaara notes the reincarnated cast to his eyes.

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Temari throws the ranks into deeper confusion by pointing out that the man they had taken for Madara was seen elsewhere leading his own army, leaving everyone to question who the masked figure truly is. The episode adapts chapters 558 and 559. One continuity slip: the third division is shown with allied ninja fighting one another even though they had yet to run into any of the White Zetsu Army.
Naruto: Shippuden episode 321, Reinforcements Arrive, shows Naruto's shadow clones spreading across every front to turn the tide against the White Zetsu Army. Kabuto also plays a shocking new card by dragging Madara Uchiha back onto the battlefield through reincarnation.
In Reinforcements Arrive, with White Zetsu clones tearing through every front, Naruto's shadow clones fan out to each battlefield once he reaches the fighting. The Allied Shinobi Forces gradually claw back the advantage, impressing even the Raikage.
In Reinforcements Arrive, Kabuto has Mu call up one more fighter using a summoning coffin, which is unveiled to be Madara Uchiha. Onoki realizes the second Tsuchikage had split himself in two before being sealed, explaining Mu's own reappearance alongside Madara.
In Reinforcements Arrive, when the reincarnated fighter is unveiled as Madara Uchiha, Gaara notes the reincarnated cast to his eyes. Temari later adds to the confusion by pointing out that the man they took for Madara was seen elsewhere leading his own army.
Reinforcements Arrive adapts chapters 558 and 559 of the manga within the Fourth Shinobi World War: Confrontation arc. It aired in Japan on July 18, 2013, and in English on November 28, 2015.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the Naruto anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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