That fiend of the Nile, the evil genius Rasburton, had once before confronted Astro Boy, then fled when the brave, little robot thwarted his scheme to re-create an Egyptian dynasty. Now he returns with a regal queen whom he calls the new Cleopatra. She is the ancient beauty reborn, he insists; and with the aid of strong-arm tactics, he installs her as Queen Of the Nile. Astro Boy, sensing trouble, arrives to investigate, but he is surprised and ambushed by a colossal robot that stuns him and leaves him to perish in the desert. All seems lost until a handsome young sheik discovers the disabled Astro Boy and revives him. Cleopatra is a fake, reveals the sheik-a sham, a mere robot built by Rasburton to resemble the Cleopatra of old. Actually, Rasburton is now ruler of the Nile – a cruel pharaoh who seeks to make all the people his slaves. Astro Boy needs hear no more. He swings into action at once, engaging in a mighty battle with a robot that towers higher than the ancient Lighthouse of Alexandria! Rasburton is defeated but-oddly enough-defeated only indirectly by Astro Boy. For the evil genius’ own robot turns against him and makes it impossible for Rasburton ever to return!