5 years after Godzilla and Kong destroyed Mechagodzilla, Godzilla returned to the depths of the sea, and Kong returned to the Hollow Earth, everything seemed peaceful, until Godzilla emerged and awakens the Titans, little to the Alpha Titan's knowledge also came the arrival of many more monsters awakening from their slumber, Godzilla has to defend his throne as Alpha.

6 years after Godzilla vs Kong where humanity has been advancing in technology for the past few years, Godzilla wakes up the other Titans to eradicate the human race, humanity has to defend against the Titans along with some new ones, an old enemy is brewing something on the horizon

Taking place after How to Train Your Dragon 2 and before How to Train Your Dragon 3, the dragon riders will meet new dragons, new threats, new allies, and their old allies, and they will have to face a threat arising in the near future