After the Kasukabe Defence wins a trip to India, Shinnosuke and Bo-chan enter a suspicious general store and find a backpack that holds a terrifying secret.

The film features Shinnosuke as a ninja, and will reveal if Shinnosuke is the real son of Hiroshi and Misae.

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.