You will Watch Dragons: Race to the Edge Season 3 Episode 7 online for free episodes with HQ / high quality. Stream cartoons Dragons: Race to the Edge S03E07 Reign of Fireworms. It becomes apparent that the twins are the rightful and lawful owners of the island on which the riders have made base. They enforce their royalty rights immediately getting the other riders doing meaningless and annoying tasks. During all this Fireworm dragons start arriving on the island as part of their migration; however being Fireworm dragons they start burning the island down. After the twins throw everyone in the ‘dungeon’ they realise they need the other riders to stop the island becoming a pile of ash. They agree that all the group are equal owners to the island and they in turn agree to help. It is only the Night Terrors forming the shape of the Fireworm Queen that gets the Fireworms to leave the island.