In a steampunk 1930s Britain, a group of mechanicals (robots) set out to save not only their friend but also the country from being destroyed by the plans of a rogue engineer.
Orphan, Christopher, is a real boy with a real soul, who works for engineer, Mr Absalom. Mr Absalom makes mechanicals, who are eccentric, loyal and all individual and are Christopher’s friends. A devastating accident divulges an awful truth and a secret is revealed, which changes Christopher's world forever.
What follows is a remarkable adventure, as Christopher discovers who he really is, and what it means to be human.