Now that the dragon secret has been revealed to ICARIS, having rambunctious dragons in town is a big adjustment for everyone, especially Tom as he struggles to maintain peace and live up to his legacy as the Dragon Whisperer. The Riders discover a new Giant Realm that changes their perspective as they meet some of the biggest dragons in the Hidden World. Someone is mining Dragonsite and putting dragons in harm’s way and Tom and the Riders have to figure out who it is, and Buzzsaw goes all in, targeting Thunder with his most nefarious plot yet, one that puts our loveable hero dragon’s very life in jeopardy.