When filming a new television episode Action Kamen is hurt badly by a villain that attacks him on the filming location making him unable to continue filming and he is replaced by his stunt double.

Kamen Rider Fourze × Crayon Shin-chan is the collective title of the special crossover episodes of Kamen Rider Fourze and Crayon Shin-chan. The special promotes the two series' new films: Kamen Rider ...

Shin-chan's little sister, Himawari Nohara, is kidnapped and he asks for Kamen Rider Fourze's help to go and save her by giving Gentaro a special Shin-chan Switch to transform into anime.