In present-day London, 12-year-old Quinn Abercromby witnesses the awakening of a hibernating dragon from a centuries-long slumber, the result of a construction dig supervised by his mother and an incident for which Quinn feels partially responsible. Twenty years later, the adult Quinn (Christian Bale) is the fire chief of a refortified castle community, responsible for dousing the blazes lit by the dragon's prodigious number of flame-spewing offspring, airborne juggernauts that have wreaked...