As Hiccup works toward his dream of building a peaceful utopia for dragons, Toothless discovers an elusive, untamed mate, pulling the Night Fury away from his side. With the village facing increasing threats and Hiccup’s leadership as chief being put to the test, both he and Toothless are forced to make heart-wrenching decisions. As danger looms, they must confront the challenges of protecting their species and their bond, knowing that the choices they make could change the fate of both dragons and humans forever.