When Hugo's father, a clockmaker, is killed in a fire, he's taken in by his uncle. They live together in a hidden room inside the walls of the Paris train station, where it's his job to maintain the station clocks -- until one night he disappears. Now Hugo is alone, still living inside the station walls, stealing to survive, and still maintaining the clocks so no one will know his uncle is gone.
Hugo also works on an automaton, a mechanical man, that his father was trying to restore. He steals parts from a toyshop in the station. When he is caught, the mean store owner takes away his father's notebook and threatens him with arrest. But the old man's hidden past and Hugo's are intertwined, and the secret message hidden in the automaton's workings is only the beginning. Includes Acknowledgments, Credits, and References.