Ember Hill left the dragon organization Talon to join the rebel dragon Cobalt and his crew, but Ember is unable to forget about Garret Xavier Sebastian, the human who saved her from a Talon assassin, knowing it would mean his death. Ember, determined to save Garret from execution, must convince Cobalt to help her in her assault on the Order of St. George's headquarters, where she will be opposed by her own brother.