The trio enjoy themselves on the rides and in a planetarium but are pursued by three security guards. The boy, his dog and the Colonel escape on fireworks rockets that land them in the countryside. They meet Professor Gulliver himself in a forest. Gulliver is now an elderly, space-traveling scientist who has built a rocket ship. With Dr. Gulliver's assistant Sylvester the crow (named Crow in the Japanese edition), Gulliver and the trio travel the Milky Way to the Planet of Blue Hope. They discover the planet has been taken over by the Queen of the Purple Planet and her evil group of robots, who the inhabitants of the Blue Planet created to make themselves a life of leisure that turned into a nightmare when the robots overthrew the population of the Blue Planet and seized control. Armed with water-pistols and water balloons which melt the villains, Ricky and Gulliver restore the Planet of Blue Hope to its doll-like owners who regain life as human beings.