The only thing that can keep them under control is the order of the Dragonwatch, but most of the Dragonwatch members have died of old age. A wizard named Agad decides to seek out Grandpa Sorensen for help, and in the process Kendra and Seth.
Dragonwatch's control is the only means of keeping them under control, but most of its members have retired due to old age. As a result, Agad seeks out Grandpa Sorensen's expertise, drawing in Kendra and Seth in the process.