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驯龙高手：九大王国
While punished, Tom must sneak out to rescue the Riders from Buzzsaw.
Tom orchestrates a “safe” tour of the realms to convince Olivia that the Hidden World is safe for them to explore.
A mischievous new breed of dragons called Vine Tails steal the Book of Dragons.
Tom and the riders must work together to rescue Eugene from a dragon’s nest.
Tom must rescue Olivia from the Hidden World when she winds up getting herself frozen by a pack of hungry Speed Stingers.
When a deep freeze puts the lives of everyone in Rakke Town in jeopardy, the riders must attempt to use the dragons to get the humans through the night without being seen.
