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.

It's how we all become full-fledged, right?
هكذا أصبحنا مؤهّلين جميعًا، صحيح؟
Nur so haben wir es doch zu
vollwertigen Handwerkern geschafft.
Así es como todos
nos convertimos en profesionales.
Así es como todos
nos convertimos en profesionales.
È così che ha insegnato anche a noi
 e siamo diventati così bravi, no?
É assim que todos aprendemos, não?
Мы ж все так и стали
 настоящими мастерами.