Set during the Fourth Shinobi World War, this episode features Naruto training to control the Nine-Tails' chakra while Iruka tries to keep him safe within a secret training room.

After the intense battle with Akatsuki member Deidara, Kakashi Hatake is hospitalized for a week due to overuse of his Mangekyō Sharingan. Meanwhile, Sakura reveals Sasori's dying words: a spy for Orochimaru will be at the Tenchi Bridge in six days.

This is the most common interpretation, marking a critical transition in the arc.