Chester doesn't want to clean his room. He says he wants to clean the sandbox first. Four cat-faced aliens arrive in a merry-go-round-shaped spaceship and make an even bigger mess than he did. When he finally goes inside, the aliens put all his toys under his bed. His mom is not pleased. And she can't see the aliens. But, she tells Chester to teach the aliens where his things go. The aliens copy him again. Will his mom believe him?