Tom and the Riders vow to help Thunder face the dangerous dragon who attacked the Kings Realm.

Tom and Thunder discover a baby Night Light and must bring him back to Thunder's home realm.

Eugene questions Tom's leadership abilities when Tom's decisions lead to failure.

Jun struggles to convince Tom to trust her faith in myths over the Book of Dragons.

Alex and Eugene find themselves at odds with Tom and their fellow dragon riders.

The Riders discover a brand-new, frosty Ice Realm; once inside, they encounter a disguised Buzzsaw.