Dragons: Race to the Edge (2015)
S6E11 Guardians of Vanaheim
Upon discovering that a group of Flyers has traced Heather to Vanaheim, the Riders realize they need to prevent them from revealing the sacred island's location to their leader.
Upon discovering that a group of Flyers has traced Heather to Vanaheim, the Riders realize they need to prevent them from revealing the sacred island's location to their leader.