When they think that they finally trapped the two mamodo, a huge armored mamodo named Ganz appears behind Kanchome and Folgore. Now, Kiyo, Zatch, Megumi, Tia, Kanchome and Folgore fight agaisn't Alm and two new mamodo, a blue dragon named Geluos and Ganz. The room ends up flooding. Unfortunatly, the lightning spells don't work underwater. Now Kiyo, Zatch and the rest of the gang must come up with a plan to defeat the mamodo's before they call in for help. Meanwhile, Sherry and Brago fight another Millennium Mamodo and also encounter Dr. Riddles and Kiddo.