The Sand ninja fight against time to treat Kankuro. Even the Sand’s poison expert, Granny Chiyo, is baffled. The only hope lies with the reinforcements sent by Tsunade.

Teams Kakashi and Guy reach the Akatsuki hideout. They hurry to infiltrate but are thwarted by a five-seal barrier. The only way to break the barrier is to remove all five seals at once.

Although stung with poison herself, Granny Chiyo uses the last of the antidote on Sakura. Mocking the tender scene between Granny Chiyo and Sakura, Sasori attempts to end Granny Chiyo's life.

Naruto, Choji and Shikamaru attempt to capture and interrogate Sai, but Sai withdraws after insulting Naruto. Shortly afterward, Ino appears. Concerned that the demon fox could fall into Akatsuki hands, the village elders challenge Tsunade's plan to send Naruto out of the village without the still bedridden Kakashi. Tsunade promises to protect Konoha with her own life if Naruto is captured, but is still forced to compromise with Danzo by adding Sai to Team Kakashi. She also temporarily replaces Kakashi with ANBU member Yamato and warns him to keep an eye on Sai. Naruto and Sakura finally meet their new team members, and Naruto is immediately angered upon Sai's appearance.

As Team Kakashi continues their search for Sasuke, Naruto suddenly collapses due to his previous fight with Orochimaru. As Naruto wakes up, Sai begins to reveal more about his brother, but Orochimaru suddenly attacks them. Sakura and Yamato come to Naruto's aid against Orochimaru, while Sai continues the search. Just as Sai finds Sasuke, Yamato finds Sai's bingo book with Sasuke listed as a target for assassination.

The temple monks explain that the tombs hold the loyal bodyguards of Fire Country's feudal lord. Naruto observes Sora sparring with other monks and becomes offended upon realizing he is holding back. Naruto challenges Sora, but just as the matter is about to get serious, another monk stops him. Naruto realizes Sora is despised by the other monks as he was himself and wishes to befriend him. Naruto visits Sora again and observes him practicing his wind jutsu in earnest, hoping to get strong enough to avenge his father. They later return to the temple to receive news that another tomb has been robbed.

Konoha's ninja fight off the revived zombie members of the Kohaku clan. The four Guardian Ninjas, Seito, Tōu, Nauma and Kitane, are also revived. Asuma realizes that they are planning to use Limelight, a jutsu in which the four create a lightning blast powerful enough to destroy Konoha. Asuma sends Sakura and Yamato after the other three while he remains behind to battle Kitane, but Fuen tackles Sakura and Fudo fights Yamato. Meanwhile, Naruto catches up to Sora, but Sora runs off in search of Furido. Naruto tries to pursue him, but is assailed by Fuuka. Soon after, Sora reaches Furido, who admits that he had planned to destroy Konoha.

The second stage of Naruto's training continues, while Tsunade sends out twenty teams composed of four ninja each to deal with the Akatsuki members in the Fire Country. Shikamaru leaves with Asuma, Izumo and Kotetsu, whereas Ino and Choji leave with Raido and Aoba. After putting in considerable effort, Naruto clears the second stage of his training, but collapses from hunger and exhaustion almost immediately afterward.