Crayon Shin-chan: Fierceness That Invites Storm! The Adult Empire Strikes Back is an anime film that premiered in spring 2001.

About the production: the story comes from a manga, the film runs about 89 minutes and its current status is "finished".

Its main genres are comedy and slice of life, with themes such as Male Protagonist, Urban, Family Life and Conspiracy.

On AniList, Crayon Shin-chan: Fierceness That Invites Storm! The Adult Empire Strikes Back has an average score of 78%, a very good score, and appears on 4,824 users' lists.

The franchise continues in or follows from: Crayon Shin-chan: Arashi wo Yobu Jungle and Crayon Shin-chan: Arashi wo Yobu Appare! Sengoku Daikassen.

As the 21st century approaches, a new 20th-century museum has opened in town, for the adults to relive their childhood. However, the owners of the museum seem to have other plans for it. The adults start to behave strangely, and one morning, they abandon their children for the 20th-century museum. Shinnosuke, along with his friends, must now rescue his parents and stop the world from returning to the 20th century before they get captured. (Source: Anime News Network)

Official synopsis from AniList.