Shishimaru, who was missed by a lost piglet for some reason I had no choice but to take care of the piglet. On the other hand, Hattori and his friends are Ninja Hattori I decided to find a piglet's mother and the found mother pig looks just like Shishimaru...
ひょんなことから迷子子ブタに懐かれてしまった獅子丸は、仕方なく子ブタの世話をすることに。一方、ハットリくん達は忍法「こだま散らし」で子ブタの母親を探すことにする。そして見つかった母親ブタは獅子丸にそっくりで…。
