In Outer Space

One evening Plummy stands in front of his house and looks at the starry sky. However, he discovers that a star is missing. With a bit of plasticine he makes a star and turns himself into a rocket in order to fly to it. In the final seconds before taking off, Plif and Plops appear. The two annoy poor Plummy on the planet, before he angrily packs everything together and flies home. But where is star the both of them were so fond of? Plummy, though, doesn't want to tell all his secrets.