Karui and Omoi of the Hidden Cloud press Naruto to give information regarding Sasuke. Naruto realizes they're motivated by wanting to save their captured master, but decides he cannot sell out his friend. Instead, Naruto offers himself as a punching bag for Karui and Omoi to abuse to their hearts' content.
Madara, who has taken an interest in Naruto, makes a sudden appearance before Naruto and reveals the truth behind Itachi's actions. Meanwhile, the samurai learn of Sasuke and his team Taka's entry into the Land of Iron, and battle ensues between the two groups.
The truth behind Itachi's actions leaves Naruto, Kakashi, and Yamato in shock. Meanwhile in the Land of Iron, Sasuke and the Raikage are fighting a battle to the death when Gaara, the Kazekage, intervenes.
The Kage respond to Madara's declaration of war by forming the Allied Shinobi Forces, with the Raikage as their leader. Meanwhile, Sakura arrives in the Land of Iron to speak with Naruto, but her confession surprises him. Elsewhere, Kisame appears before Killer Bee and his master as an unwelcome guest.
Killer Bee engages in a deadly battle against Kisame, who has come to capture the Eight Tails. Kisame reveals to Killer Bee that his weapon, Samehada, possesses the ability to rob and convert enemy chakra into the wielder's own strength. Now infused with more strength, Kisame shows his true power as the Tailless Tailed Beast. Elsewhere, while in pursuit of Danzo, Ao falls into Foo's deadly trap.
Danzo's uncanny jutsu prevents Sasuke from landing a clean hit on his enemy. As Karin attempts to analyze Danzo's jutsu, Madara recognizes it as Izanagi, the Uchiha's forbidden Visual Jutsu and ultimate genjutsu technique that enables the user to control the space between fantasy and reality.
Danzo believes he's won the battle against Sasuke. Little does he realize, Sasuke placed him under genjutsu before they last exchanged blows. Not knowing his Izanagi has already expired, Danzo finds himself severely wounded and beginning to lose control over the First Hokage's cells inside of him. Still determined to survive and achieve his goal, Danzo decides to take Karin as a hostage.
Having tracked down Sasuke's whereabouts with Kiba's nose, Sakura attempts to put her allies to sleep and carry out the task of killing Sasuke herself. As Sakura heads toward Sasuke, she begins to recollect her fond memories of Team 7.
Memories from his childhood course through Naruto's mind as he rests to recover from his hyperventilation. Now realizing what it means to gain something dear and then lose it, Naruto sneaks out of the inn to follow behind Sakura and Kakashi to find Sasuke.
Sakura tells Sasuke that she wishes to desert the village and join him. A skeptical Sasuke tells Sakura he will believe her if she can finish off Karin. When Sakura hesitates to do so, Sasuke attacks her with Chidori but is stopped by Kakashi, who has arrived in the nick of time.
Naruto reproaches Sasuke for attempting to kill Sakura. Then Sasuke reveals that he killed Danzo with his own hands. He goes on to declare his intent to purify the Uchiha Clan's name by annihilating the Hidden Leaf, whom he holds responsible for dishonoring the Uchiha Clan. Naruto, ignoring Kakashi's order to leave with Sakura, charges toward Sasuke with his Rasengan.
Killer Bee returns to the Hidden Cloud Village to the delight of Omoi and Karui. He has brought Kisame's sword, Samehada, with him. Bee believes the sword has taken a liking to him but is unaware that this is all just part of the Akatsuki's plan. Meanwhile, Sai informs the Leaf Shinobi of Danzo's fate.
The formation of the Allied Shinobi Forces is ratified by the Feudal Lords of the Five Great Nations. Each Kage returns to their village to prepare for the coming war. Meanwhile, Naruto has returned to the Leaf Village and asks Shikamaru to gather up his friends.