Naruto and Sasuke fight against Momoshiki Otsutsuki. Momoshiki gets defeated, but he's helped by Katasuke and his Scientific Ninja Tool. In the end, Boruto puts an end to Momoshiki's life. While dying, Momoshiki talks to Boruto and gives him the Karma Seal.

The showdown between Team 7 and Ao begins. Team 7 works together to bring Ao down with various attacks and jutsu, but he proves to be a difficult adversary due to his use of scientific ninja tools.

After Ao's defeat, Koji Kashin appears before Team 7 and attempts to ensnare them in a sealing jutsu and eliminate them. Konohamaru breaks free and takes him on, but during the battle, the mark on Boruto's hand activates.

Boruto and the others learn that the boy named Kawaki is the target that Kara has been seeking. They watch on as a battle rages between Kawaki and the Kara Outer, Garo, and are shocked by the young man's capabilities.

The Five Kage agree to place Kawaki under Naruto’s custody. Naruto takes Kawaki home, but he still refuses to open up to anybody. The atmosphere between Boruto and Kawaki, who fought each other before, turns threatening.

Delta uses her destructive beam that can neutralize any regenerative power. Undaunted, Naruto forcefully suppresses it with a Giant Rasengan. He then turns up the power of his jutsu and propels it towards Delta. Unfortunately, Delta has been fitted with Scientific Ninja Tools and is able to absorb any jutsu, no matter how powerful… What will be the outcome of this battle?!

As Naruto sleeps, Kawaki repairs the vase he broke. Suddenly, Kurama, the Nine-Tailed Beast, appears before him. Kurama has been living with Naruto since he was sealed within him and tells Kawaki that Naruto used to be just like him. Upon hearing about Naruto's life, Kawaki aspires to become just like him. He reaffirms his decision to work with Boruto, who is also branded with a Karma, to defeat Jigen and the Kara.

Using the Transportation Technique, Sasuke arrives at a strange location that is covered with mysterious inscriptions. There he finds many surprising things about the Otsutsuki Clan. Meanwhile, Boro, one of the leaders of the Kara, has been using his mysterious powers publicly to heal the sick. He tells the people who have gathered that he has a way for everyone to achieve happiness.

Naruto has been pulled into a different dimension by Jigen. There he encounters Sasuke, who tells him that Jigen is a dangerous person and that they must do whatever it takes to defeat him immediately. Naruto and Sasuke work together to defeat Jigen in a fierce battle, but they struggle against Jigen's advanced fighting abilities and mysterious jutsu. Meanwhile, Boruto gets a bad premonition when his Karma starts acting up, and so he quickly returns home with Mitsuki. Kawaki and Sarada are there, worried about Naruto's safety.

The reformed Team 7 launches a series of attacks on Boro. But even when they land successful attacks, Boro instantly revives himself with his extraordinary regeneration powers.

Boro goes on a rampage and attempts to eliminate Boruto and the others. Boruto is beat down and falls unconscious. Then suddenly, his Karma activates and he becomes possessed by Momoshiki's spirit.

Amado reveals to Naruto and the others the knowledge that he possesses regarding Jigen, the Otsutsuki Clan, and Karma. Meanwhile, Koji Kashin confronts Jigen, and Amado's plan to eliminate him is revealed.

Koji Kashin continues his battle with Jigen, whose body is revealed to have been taken over by Isshiki Otsutsuki. He continuously hits Jigen with a barrage of attacks in an attempt to drag Isshiki out of his body and destroy him.

Boruto opens a portal and transports Isshiki and himself to another dimension. Naruto and Sasuke follow them, and the final battle against Isshiki begins.

Naruto and Sasuke are greatly overwhelmed by Isshiki's abilities. As a last resort, Kurama offers Naruto a chakra mode called Baryon Mode, which grants him immense power. The intensity of this power, however, could end his life.

Due to the risk that Code might attempt to kill Boruto and Kawaki, guards are assigned to them. Boruto is sick of being watched every day. Meanwhile, Kawaki overhears a conversation between Shikadai and Inojin and learns how to slip past his guard and the Village’s sensory system. Once he decides he must do whatever it takes to protect Naruto and the Hidden Leaf, he jumps into action. Despite their keen sensory abilities, Naruto and the Village’s sensory team are unaware of what’s happening. But Boruto feels a strange sensation that allows him to detect Kawaki’s movements.

Boruto arrives to help Kawaki defeat Code. In order to match Code’s incredible combat abilities, Boruto activates his Karma. In response, Code activates his own Karma. As the battle intensifies, Kawaki becomes worried that Momoshiki might take control of Boruto’s consciousness. Meanwhile, in the Hidden Leaf Village, Boruto and Kawaki had disappeared without anyone noticing. Naruto decides to do his own investigation to find out where they went.

Amid a fierce battle, Kawaki’s fears come true, and Momoshiki takes control of Boruto. Kawaki watches as Boruto overwhelms Code as Momoshiki. Then Naruto arrives with Shikamaru. Kawaki is concerned for Naruto’s safety as one of Code’s targets, but despite his wishes, Naruto takes on Code as the Hokage. Unfortunately, Code takes Shikamaru hostage, and in his desire to settle his grudge, Momoshiki joins him. Naruto faces an extremely dangerous situation.

Boruto makes a desperate decision to prevent Momoshiki from taking over his consciousness again. Meanwhile, Kawaki drives back Code using the Karma that Amado revived. Willing to do whatever it takes to eliminate anyone who is a threat to Naruto, Kawaki fights with overwhelming power. Shikamaru is shocked by his strength, and Code learns the difference in their powers. Boruto and Kawaki have overcome various obstacles as brothers, but a troubling shadow begins to loom over their relationship. As Momoshiki once said, the fateful moment that will take everything from Boruto is approaching!

Naruto and the others are exhausted from their battle with Isshiki. Suddenly, Boruto attacks Sasuke. Momoshiki has taken control of Boruto’s consciousness and stands before them as an enemy. Kawaki desperately calls out to Boruto to snap him out of it. Unfortunately, his words are unable to reach him. Sasuke tells Kawaki a way to bring back Boruto’s consciousness. In order to save Boruto, Kawaki attempts a risky plan using a jutsu he only recently learned. While Kawaki and Sasuke fight a desperate battle, Naruto finally runs out of strength. As his consciousness fades, he and Kurama quietly reminisce about their past.

In order to get a better handle on their Karmas, Boruto and Kawaki decide to train under more realistic conditions. As Naruto and Himawari watch, they activate their Karmas and confront one another. Meanwhile, Delta joins up with Koji Kashin, who’s still pursuing Kawaki. Somehow, Koji is able to sneak into the village without triggering the Hidden Leaf’s sensory system. Delta is left with no choice but to wait for his return. But when he doesn’t come back, she runs out of patience.

Boruto and the others return to the technology lab to contain and watch over Kawaki while Konohamaru returns to the Leaf Village to report the events of the mission to Naruto.

Kawaki starts living in the Uzumaki household, and at first he’s bewildered by their peaceful everyday life. Eventually he’s put to ease by the cheerful and welcoming atmosphere of the Uzumakis. Meanwhile, Boruto is furious that Kawaki has broken a vase that his little sister had made for their mother, fanning the flames between them. As a fellow wielder of the Karma, Kawaki makes a proposal.

Kawaki watches a Shinobi Hand-to-Hand Combat match between Naruto and Boruto. Boruto uses his specialty, the Shadow Clone Jutsu, to take on his father, but he struggles. Upon seeing this, Kawaki tells Boruto to use the power of his Karma. Meanwhile, Kawaki becomes interested in the Shadow Clone Jutsu that Naruto and Boruto like to use.

Delta forces her way into the Leaf Village to take Kawaki back and appears before Boruto and the others. Naruto confronts her to protect Boruto, Himawari and Kawaki. She attacks Naruto with Scientific Ninja Tools that have been implanted into her heavily modified body. In response, Naruto unleashes the power of the Nine Tails, and a fierce clash ensues!