Kawaki and Himawari’s class goes on a field trip to an uninhabited island in order to create new memories with Kae. Because of its distance from the village, there are all sorts of rumors about the island, and bizarre incidents occur, like the disappearance of the food they brought. The field trip suddenly starts to feel unsettling, but under Hana Sensei’s direction, the students try to work together to overcome these difficulties. Meanwhile, Kawaki suspects the assassin targeting Kae might be lurking nearby, so he steps up his watch.

The assassin targeting Kae has finally been revealed. Because of their previous clashes, Kawaki knows they are a powerful foe. He decides to chase after the assassin by himself to prevent putting any more students in danger. But Kawaki finds it difficult to do that without knowing where the assassin is; what’s more, his classmates desire to work together to chase down the assassin and save Kae. And so, the entire class begins their pursuit!

As test subjects drop off one by one, Boruto tries to find a way to get everyone out alive. The next experiment is for the subjects to carry candles that are directly linked to their lives. Although some people try to save only themselves, Boruto and a fellow ninja from the Leaf Village, Kiseru Gankubi, aim to clear the challenge together with everyone…but Ouga’s experiment mercilessly pushes them to their limits!

While everyone is exhausted from Ouga’s experiments, a test subject talks about their goals, which leads everyone to talk about what they want to do if they survive. The mood is lightened, but Ouga begins a new experiment. Due to the careless actions of certain test subjects, everyone's lives are in danger once again.

Code worships Isshiki Otsutsuki, who was defeated by Boruto and his friends. In order to meet a certain person, he visits the facility that formerly belonged to Boro. Like Kawaki, Code miraculously survived the experiments intended to help select a vessel for Isshiki—and he possesses greater power than even Jigen. He has vowed revenge against Boruto and Kawaki for destroying Isshiki.

Meanwhile, Claw Marks left by Code are discovered just outside of the Hidden Leaf Village. While the Hokage and the others take precautions, Boruto proposes an idea to Kawaki.

With the disappearance of his Karma, Kawaki has lost his powers. He becomes worried that he won’t be able to protect Naruto or the village he cares for. Seeming to know what Kawaki is thinking, Amado verbally provokes him. Sumire becomes worried that Amado is planning something.

Meanwhile, Code teams up with Eida to get his revenge. Eida introduces him to another person who will be helping them.