Naruto Shippuuden Episode 85: "The Terrifying Secret"

Naruto Shippuuden 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. 

A big thank you to MySpace.Tv especially to The First One for providing the video and wikipedia for providing the show info.