Tom and Jun take a risk in revealing the secret of the Hidden Realm to D’Angelo to aid an injured dragon, and D’Angelo bonds with Plowhorn.

Tom and the Riders try to save ICARIS when it's revealed to be in danger from a monstrous dragon.

When Feather is taken by a group of what appear to be zombie dragons, Alex finds her inner hero and rescues her friend.

Tom and the riders help Thunder, who is seeking revenge against the dragons that chased off his family.

After a fight with her mom, Jun joins Tom on an adventure into the Fire Realm, where her knowledge of myths saves the day.

Eugene discovers the Lair and demands a dragon of his own.

Tom and the riders discover the Ice Realm and find Buzzsaw inside.

Tom’s leadership abilities come into question by Eugene when his decisions lead to failure while attempting to confront Buzzsaw.

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.

Tom struggles under the pressure of being the new ‘Dragon Whisperer’ for Rakke Town; Thunder rises to the occasion to help him.

When the dragons fall victim to Buzzsaw’s poison darts, D struggles to keep a cool head and find a cure while others panic.

Tom and the riders “borrow” the bathysphere to rescue a dragon from the depths of the Giant Realm Sea.

When Phil threatens to shut down D’Angelo’s new dragon hospital and ban dragons from ICARIS, D’Angelo and a little Hobgobbler have to change his mind.

When Thunder accidentally fries Alex’s tablet, Alex goes off on her own and is captured by Buzzsaw.

The Dragon riders enlist the aid of Carla and Hazel and their scientific knowledge to help them prepare for a mission to neutralize Jörmungandr so they can return him to his chamber and seal him back inside.

Tom’s overconfidence turns to frustration then despair as he struggles to procure the ingredients for Gronckle Iron in hopes of building a trap to stop the World Serpent.