Ember stands with Riley and his band of rogue dragons, instead of becoming an assassin for Talon. Meanwhile, she's lost contact with her twin brother Dante, as well as with Garret, a former-enemy soldier who challenged her beliefs about her human side.

Unable to forget the human boy who saved her from a Talon assassin, Ember is determined to save him from execution with the help of rebel dragon Cobalt and his crew of rogues.

Ben and his adopted parents are devoting their lives to protecting rare and fabulous creatures (like dragons) and at the moment they are trying to save the last of the winged horses, Pegasus unicus. There are three eggs, but without their mother they will not survive, and the only hope is to obtain a Griffin feather, but Griffins are enemies of the dragons and may not be willing to help.