Unfortunately, the Spider Imagin, the Wolf Imagin, and the Anthopper Imagin interrupt the exercises, Ryotaro becomes Kamen Rider Den-O Liner Form to use his training against the evil Imagin!

A sixty minute special of the Crayon Shin-chan anime featuring a crossover between Shin-chan and the live action tokusatsu series Kamen Rider Den-O, as well as three normal summer-themed episodes.