Naruto: Shippūden (2007)

S5E100 Inside the Mist

Guren loses consciousness and experiences memories from her past while Naruto finds himself trapped in an illusion involving Sasuke. Kakashi eventually locates him, and both Teams Kakashi and Kurenai realize that the mist surrounding them is responsible for the Genjutsu, linked to the Three-Tails. Once Guren regains awareness, Yūkimaru suffers another bout of fever and collapses. Tsunade learns about the Three-Tails and gathers Shizune, Ino, Tenten, and Lee to seal it before the Akatsuki can intervene. Meanwhile, Naruto and Sakura discuss the importance of returning home as Naruto sets off to find Yūkimaru.