The ship carrying Boruto, his friends, and the people of Dotou Island is dead in the water. A shipbuilder Kajiki and his apprentice Ikada happen to pass by and offer to repair the ship at an island of shipbuilders where they live. Upon arriving on the island, Boruto and his friends try to do whatever they can to help while waiting for their ship to be repaired. Meanwhile, in the seas near the Land of Water, a clash between the pirates of the Funato Clan and the Land of Water is becoming unavoidable.

The mobile fortress achieved its purpose
أدرك هذا الحصن المتنقّل غايته
Die mobile Festung
hat ihren Zweck erfüllt,
El fuerte móvil destruyó la base
del frente del País del Agua.
El fuerte móvil destruyó la base
del frente del País del Agua.
La fortezza mobile ha svolto la sua missione quando 
ha distrutto la base in prima linea del Paese dell'Acqua.
A fortaleza móvel cumpriu seu objetivo
Крепость была нужна лишь для того,
чтобы разрушить форпосты Воды.