A strange monster with a sweet tooth for chocolate appears in Yokohama Bay. Meanwhile, young Honshino has been kidnapped by a gang of jewel thieves. Unfortunately, their hideout is a warehouse full of delicious coco beans. Can Ultraman and the Science Patrol members find Honshino before the monster attacks?
“海獣ゲスラ登場”
海獣ゲスラが、好物のカカオの実を狙って横浜港に出現した・・・
