As Hiccup fulfills his dream of creating a peaceful dragon utopia, Toothless’ discovery of an untamed, elusive mate draws the Night Fury away. When danger mounts at home and Hiccup’s reign as village chief is tested, both dragon and rider must make impossible decisions to save their kind.
the official version from dreamworksanimation.com on December 5, 2016
The concluding chapter of the story between Vikings and dragons in the How to Train Your Dragon trilogy.
from variety.com on November 20, 2010