Recounts the further escapades of Hiccup Horrendous Haddock the Third as he continues his Viking training during which he escapes from a boatload of Roman soldiers and searches for his kidnapped dragon.

One fateful afternoon, classmates Luca, Yazmine, and Zane stumble upon a strange-looking rock called a geode in one of the rooms at school. To their surprise, a touch of this geode transports them to a magical land named Imperia. The geode is actually adragon egg! It's one of three Thunder Eggs that needs to be returned home to secret locations in Imperia. Once these eggs hatch, the dragons born from them will restore peace to the land. In order to...

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.

Twelve-year-old Princess Sofia of Drachenheim enjoys freedom from her sister's manipulations during a diplomatic mission to far-off Villenne, until she and her dragon friend, Jasper, are forced to face ice giants.--

Kenny Rabbit's jealousy leads to trouble after Dante the Manticore escapes from an evil witch's magical book and reunites with his old friend, Grahame the Dragon.