Dezico sets out to sea on an adventure with his magical pet, Bean. The pair get separated in the dangerous ocean. While looking for Bean, Dezico has to face many difficulties on his own. Drifting along, he unexpectedly meets Chief Azure, a girl who's searching for the Heart of the Ocean. Together, they go on a fantastic adventure to the Forgetful Island where they find Wheeler, Azure's missing younger brother. In the end, Dezico reunites with Bean and does a lot of growing up along the way.