Boruto Uzumaki!

Years before Boruto Uzumaki's battle with a man named Kawaki, young Boruto and Shikadai Nara ride atop a train, the latter reminding Boruto that tomorrow is their Academy entrance ceremony.
Boruto sees a boy being bullied and defends him. They talk about their fathers with the boy, Denki Kaminarimon, revealing that his father is a billionaire businessman in charge of the Hidden Leaf rail system. Boruto encourages him to stand up to his father. Boruto returns home and is not surprised to learn that his father, Naruto, is away.
Meanwhile, Denki tries to defend himself, but his father rejects him, saying that Denki will win his approval by being strong. The next morning, Boruto is late for the ceremony and sees Denki controlled by an evil aura. Denki lures the bullies into a broken down train and sends him to another train with the intention of scaring them. Boruto intervenes and brings Denki back to his senses and manages to avoid the collision. However, the train ends up crashing into the Hokage's stone face.

Next episode

S01E02 - The Hokage's Son!