Orochimaru's minion Guren will do anything to stop the Leaf ninja from sealing Three Tails, but the Leaf's top shinobi will be tough to beat! While a sealing team tracks the location of the beast and its host, a guard team led by Kakashi and Naruto fends off attacks from Guren. But it's no ordinary battle when Naruto finds himself fighting alongside his enemy in a most unusual location-inside the Three-Tailed Beast!