A young orphan boy Jim Button, his best friend Luke and a magical steam engine called Emma travel across the world in search of the truth about where Jim came from. Battling pirates and dragons, outsmarting make-believe giants, they must travel through the Forest of a Thousand Wonders, beyond the End of the World to find the hidden Dragon City.

Fed up with the hostility of the city and its people, a young woman's view of the world changes when she makes a surprise connection with a stranger on a bus.