When Debo Batissier causes Ian to get painful tooth cavities, Daigo, Nobuharu, and Amy must figure out how to call upon the power of a new Zyudenryu, Ankydon, while they meet a mysterious man within the Spirit Base.
冰結城怪物丑蝕怪以蛀牙激光作惡,連幽靈戰士拉美列斯的拍檔甲鎚龍亦遭殃。宗司和伊昂不咬弦。經醍醐調停後開始互相諒解,合力破解丑蝕怪的蛀牙絕招,強龍王出陣,一舉殲滅丑蝕怪後,滿以為甲鎚龍可脫困,但另一怪物又再登場,一波未平一波又起。