All the engines on the Island of Sodor work very hard to keep things running smoothly on Sir Topham Hatt's railway. But even with all this hard work, sometimes unexpected things can happen. Who would have guessed that Thomas would rocket past the proud and fast Gordon, thanks to a surprising push from a jet engine? And is Percy's imagination getting the best of him, or are naughty gnomes really playing tricks around the old mine? Can horses fly? Well, Harold certainly can make them - especially ...