The Dynamic Stone of Dynamic Man was taken away by the Swimsuit Demon King, so he could not return to the original world, so he assigned Shin-chan and his family to become Dynamic Warriors and go to another world. At this time, the people in the other world were turned into swimsuit people. After listening to Lily and the doctor's explanation, Shin-chan decided to help Dynamic Man overcome the crisis. Can he and Dynamic Man defeat the Demon King and save the peace of the earth...