Nintama Rantarou Movie: Dokutake Ninja Tai Saikyou no Gunshi

Doi-sensei fails to return to Ninjutsu Academy after leaving to face a ninja from Tasogaredoki. Yamada-sensei and the sixth-year students begin searching for him, while Rantaro, Kirimaru, and Shinbei realize that something far more serious than an ordinary missing assignment is happening beyond the school grounds.

After Doi disappears, a mysterious man dressed in white emerges with ties to the Dokutake forces, shifting the story from the students' usual mishaps toward a conflict involving their teacher directly. The ninja trainees, better known for mistakes than flawless missions, must now rely on everything they have learned to find Doi and uncover the identity of the “strongest strategist” appearing among their enemies before rescuing him becomes even more difficult.