What happens when modern-day school girl Storm Valdez (or you can call her by her nickname Tempest) gets thrown back in time to the Viking era-specifically in Berk-and gets caught by the son of the cheif-Hiccup-literally. She fell out of the sky. Nobody knows HOW she got back in time or WHERE she came from or HOW to get her back to her era. All that's left to do is train her. For riding dragons of course. Meanwhile, someone is planning to take away a mysterious dragon from Berk-which might be the cause of Tempest's appearance in Berk in the first place...