Tsunade tells Sakura that Team 7 will be Team 10's backup if Naruto finishes his training within 24 hours. Shikamaru quickly adjusts the team's strategy to include Kakashi. After Hidan and Kakuzu are found, Shikamaru pins the shadows of the Akatsuki pair with Asuma's blades imbued with his chakra. He uses Hidan to attack Kakuzu, but Kakuzu had secretly detached his arm during Shikamaru's attack. The arm removes the blade pinning his shadow and he dodges Hidan. Choji then attacks Kakuzu from above.
Naruto Shippuden Episode 84 - Kakuzu's Abilities
Choji's spiked cannonball is ineffective against Kakuzu's special ability, which enables him to harden his skin with an Earth element technique. Naruto learns more about the five elements and their strengths and weaknesses in relation to each other. Kakuzu gets struck by Kakashi's Lightning Blade right through the heart, but survives and produces four masked entities from his body, one of which dies, as it had been struck by the Lightning Blade. Kakuzu then uses the masks to attack Team 10 with Kakuzu using powerful wind, lightning and fire jutsu.
Naruto Shippuden Episode 85 - The Terrifying Secret
Shikamaru realizes Kakuzu has five hearts, each of which must be killed before he dies. He reasons that separating the two Akatsuki is the only way to defeat them, so he uses Shadow Possession Jutsu to lead Hidan to a forest. Kakuzu combines two of his hearts into a single entity and prepares to face Kakashi, Ino and Choji to get a replacement heart. At the same time, Hidan strikes Shikamaru and draws blood. He then prepares to use his ritual to kill Shikamaru.
Naruto Shippuden Episode 86-87 -- Shikamaru's Genius - When You Curse Someone, You Dig Your Own Grave
Hidan stabs himself, but instead of mortally wounding Shikamaru with his curse, he destroys another one of Kakuzu's hearts. Shikamaru attempts to behead Hidan, but fails, then pins him down with his shadow possession. It turns out that vial contained blood that Kakashi took from Kakuzu when he hit him with Lightning Blade. This temporarily incapacitates Kakuzu, though his other hearts continue to attack. Choji attempts to finish off the remaining hearts, but fails, and they return to Kakuzu's body, with one sacrificing itself to become his heart. Just as Kakuzu is about to finish them off with another fire/wind jutsu, Team 7 arrives just in time to stop the attack with a wind/water jutsu combo.
Sakura and Sai leave to help Shikamaru. Hidan attempts to break out of Shikamaru's weakened hold on him, but Shikamaru uses a new technique to pull the explosive tags he set up onto his body. Shikamaru then opens a trap hole he had prepared, and reveals that his plan was to bury Hidan beneath the Nara family woods to ensure that no one would look for his body. He has a vision of Asuma entrusting his "will of fire" to him, then uses his lighter to ignite the tags on Hidan. Naruto uses Shadow Clones to test Kakuzu's fighting ability, and then readies the jutsu he has been developing, Wind Style: Spiraling Shuriken..
Naruto Shippuden Episode 88 - Fuuton, Rasen-Suriken
Naruto uses his new technique Rasen-Shuriken to battle Kakuzu. In the fisrt attempt, he fail. He lost Rasen-Shuriken form just it will hit Kakuzu. Kakuzu catch Naruto and want to steal his heart, but Kakashi and Yamato move quickly to save Naruto.
In other place, Shikamaru defeat Hidan alone. He explodes hidan with explosive tags and bury him there. few moments later, Sakura and Sai come. See that Shikamaru have defeated hidan, they return to rejoin their friends.
Naruto tries for the second attempt. Kakuzu knows that he must use long range combat to counter Naruto's technique. Naruto uses his shadow clone again and this time, his Rasen-Shuriken success hit Kakuzu.
