Set 1,300 years after the events of How to Train Your Dragon,dragons are now just a legend to the modern world. When ageological anomaly opens an immense, miles-deep fissure in theEarth's surface, scientists from all over the world gather ata new research facility to study the mysterious phenomenon.Soon a group of misfit kids, brought to the site by theirparents, uncover the truth about dragons and where they'vebeen hiding - a secret they must keep to themselves to protectwhat they've discovered.