This is a comedic action film that parodies the tokusatsu monster/hero genre, featuring familiar characters such as "Godzilla" and "Ultraman." The Nohara family encounters a time-space conditioner known as Miraiman, who implores them to fight against enormous monsters that emerge from distortions in time and space. They must act quickly to prevent the world from being destroyed. Shinnosuke's parents, Hiroshi and Misae, transform into heroic figures to take down these beasts within the strict three-minute time limit. However, their obsession with defeating the monsters causes Misae to neglect housework. When a particularly formidable monster appears, they are unable to defeat it within the allotted time. It is then that Shinnosuke steps up to the challenge.