When Harry loses his helium balloon he wishes that he had the ability to fly. Curious that this may actually be a possibility in Dino World, Harry and dinos go off to find out. However, flying doesn't turn out to be so simple in Dino World as everyone learns the hard way. Mad cap balloon adventures get a little tricky, as poor Steggy nearly disappears off into the sky. Harry and Pterence heroically rescue their unfortunate friend, and Harry gets to experience what it's like to fly in the process.