Astro and his friends find an offline construction robot named ZOG. Astro secretly revives ZOG, and the kids bring him back and clean him up for the Hamegg games. Later that night, Astro comes across Cora trying to call Metrocity. She reveals to him that she actually has parents and was worried if they even missed her. Astro promises not to tell and tries to tell her his secret but can't. The next day at the Hamegg games, Hamegg betrays Astro, learning of him being a robot, and pits Astro against other robots in the Robot Games. Unable to simply leave, Astro is forced to destroy all the robots. Hamegg releases ZOG for Astro to fight, but both refuse to fight one another. Stone and his men arrive then and arrest Astro. They take him back to the Ministry of Science, where Tenma is asked to remove the Blue Core; however, at the last moment, he has a change of heart, accepting that even if Astro isn't Toby, he's still his son, and allows Astro to escape. This is the only media in which Tenma accepts his creation back as his son. Stone places the Red Core into the Peacekeeper again, only for it to absorb him and take on his consciousness. Astro and Stone fight across the city, demolishing most of the buildings and causing the city to begin crashing to Earth. Astro is able to slow Metro City's descent by flying underneath and pushing upwards with his leg-rockets. Cora, the other children, and the Robot Revolution try to help to bring down the Peacekeeper/Stone fusion. Stone catches Astro and is about to absorb him, but when the Blue and Red Cores clash, he lets Astro out due to the close proximity of the two Cores causing him great pain.