One day the Fat Fairy turns up at Thomas Top's house to grant him a birthday wish. Thomas can't think what to ask for, so he wishes he could fly. That's how Thomas goes from being just an ordinary boy whom no one notices to being the most popular boy in the school. But it makes him sad that grown-ups can't see the wonderful things he can do. His flying gets him suspended from school, and that makes life at home much worse, because his dad gets so cross and it makes his mum miserable. But then the Fat Fairy turns up again, and with help from her and Thomas's new friend Mr Vinnie, a retired painter and decorator who has been flying since he was Thomas's age, everything changes.