A hysterical, action-packed outer space adventure for Fly Guy and Buzz in the New York Times bestselling Fly Guy series. Buzz is making a movie about aliens from outer space. When the action begins, superheroes Fly Guy and Buzz Boy are protecting a secret fort in the sky when an alien ship captures them! The duo must outsmart the aliens and the space pirates with the help of Dragon Dude and Fly Girl. The fun-zee is never-ending in this early chapter book.