Goku and his companions arrive at the mystic Second Demon World where a giant ocean spreads as far as the eye can see! The party is amazed at the new world but is immediately attacked by Gendarmerie that have been sent by Gomah!

To stop Goku's advancement, Gomah commits an unbelievable taboo! Goku and his companions can no longer proceed. Just when it seems their adventure is over, a certain someone reveals their true power!