Crayon Shin-chan: Serious Battle! Robot Dad Strikes Back

Hiroshi suffers a back injury, leading to a slipped disk, which prompts a mysterious woman to take him to an Este salon for a free beauty treatment and massage. This results in his transformation into a robot, much to the surprise of his family, particularly his wife Misae. The robot version of Hiroshi proves to be incredibly useful, but his transformation is soon revealed to be part of a sinister plot by "The Association of Fathers" to create an idealized model for Japanese dads. Shinnosuke and his robot father must work together to stop the chaos caused by the out-of-control dads in Kasukabe.