Little Bill's spaceship won't work due to a dead battery. His family thinks he's too little. So he makes up a story about him and Max the Alien saving Captain Brainstorm from the giant purple aliens on Planet Bleep Blop, but they soon realize the purple aliens need help. After the story, Big Bill gets a battery for Little Bill's spaceship and Little Bill reaches April and Bobby's basketball, which it rolled under the porch steps.