忍たま乱太郎

Rantarō, Shinbei and Kirimaru are ninja apprentices in the Ninja Gakuen, where first grade ones are called "Nintamas". They must learn everything a ninja must know, but as for our heroes, money, food or playing are more interesting. The series show the everyday adventures of our heroes.

The film stars Seishiro Kato as Rantaro who is sent to a ninja training school by his parents. During the summer, their teacher is invaded by a group of rival ninjas culminating in a race to ring a bell on top of a mountain.

Some unknown castle hire Yamada Rikichi to steal back the secret medicine which was stolen by Dokutake Castle. On the other side, Dokutaka attack and took Fukutomi Shinbei and Kato Danzo’s carrying. Danzou went chasing Dokutake Ninja, while Shinbei run and report the incident to Ninjutsu Academy. And first year ha class went to rescue Danzou after hearing the message.

The Ninjutsu Academy students return from summer break to hear that due to one of Komatsuda's mistakes, all their summer homework was mixed up. As a result Kisanta, who received an assignment meant for a sixth year, has gone missing after trying to sneak into Oomagatoki Castle to steal their lord's fundoshi. A group including Shinbei and Kirimaru is sent to rescue him, but since Oomagatoki is at war with Tasogaredoki Castle it might be a difficult mission.

The movie centers on Rantaro's teacher Hansuke Doi losing a battle against Sonnamon and Zatto Konnamon becoming a teacher at Ninjutsu Academy.

At a time when nations are warring, a sword with mysterious power called "Heaven's Sword" is stolen. The sword is said to give its wielder the power to conquer the world. Various ninja all over Dokutake Castle and beyond also manuevering for this sword of immense power. Rantaro and his classmates are assigned to retrieve the stolen sword, their first real ninja mission.