Documentary about the art of film editing. Clips are shown from many groundbreaking films with innovative editing styles.

Orphaned and alone except for an uncle, Hugo Cabret lives in the walls of a train station in 1930s Paris. Hugo's job is to oil and maintain the station's clocks, but to him, his more important task is to protect a broken automaton and notebook left to him by his late father. Accompanied by the goddaughter of an embittered toy merchant, Hugo embarks on a quest to solve the mystery of the automaton and find a place he can call home.