By Royal Appointment Only! The Queen has invited The Fat Controller to London to receive an award and Thomas is selected to take him there! But Thomas has never been to London before and, with no knowledge of how to get there, their journey is soon filled with confusion and delay. During the journey, Thomas befriends a very important looking engine, who has broken down just outside of London. Despite being pressed for time, Thomas helps her to the station. But little does he know just how important she is!