Astro lands in a building, where he reunites with Tenma. Tenma informs him that if the Blue Core and Red Core come together, Astro and the Peacekeeper will both die. Astro decides that this was the reason he was made, and flies straight toward Stone, crashing into him and merging the Cores which destroys the Peacekeeper and frees Stone (who is knocked out from the collision). However, with both Cores drained of energy, Astro is deactivated. Cora, Dr. Elefun and others find Astro's body. ZOG transfers some of his Blue Core energy (which Astro kindly gave him) to Astro; with the catalyst restarted, the Blue Core once more becomes a limitless source of energy, so Astro is easily revived and his wounds automatically heal. Astro is reunited with Dr. Tenma, and Cora finds and makes up with her parents. Stone awakes, only to be arrested by his own troops. When an alien life-form appears over the city, the movie ends with Astro flying up to battle it.