The Nohara family members take a vacation to Australia for rarely happened annular solar eclipse, in the name of dad and mom's honeymoon postponement. It is really an exciting and adventurous trip.

Shin Chan gets his mother to finally buy him the last Ultra Hero sword, but when he opens the package there is only one rule inside. In addition to this confusion, Shin Chan meets Tostado, a dog just like Nevado but in black.