Naruto Shippuden Episode 83 - Target: Locked On
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.
