Crayon Shin-chan: The Hidden Treasure of the Buri Buri Kingdom

A member of the Time Patrol finds out that there is a disturbance in Japan, 1570. While heading to that particular time and location to investigate, she is attacked and ends up stuck underground the Nohara residence at the end of the 20th century Japan. Having limited resources at hand, she is forced to ask for the help of the Nohara family. Together they go back in time and meet with a samurai named Fubuki-maru who believes that they are the legendary three persons and dog whom someone from her family would eventually meet in a crucial moment. The lonely samurai asks for their assistance in defeating the man that possesses strange magical powers, the sinister Unkokusai lord.

Shin-chan and his friends discover an abandoned movie theater where some sort of western film is being displayed to an empty room. Shinnosuke's friends mysteriously disappear thus making the Nohara family start searching for them at the location they were last seen. While looking for the other kids, the Noharas inexplicably find themselves taken into the movie being exhibited.

The film's story begins when Shiriri, an alien, arrives and turns Hiroshi and Misae into children. To turn them back, Shinnosuke must travel the length of Japan with Shiriri hidden in his butt. Meanwhile, Shiriri's father is moving forward with a huge conspiracy.

The thirteenth Crayon Shin-chan movie.