Eight years after Berk's heir vanished, the Viking town is slowly crumbling. Dragon attacks are more devastating than ever. To save her village, Astrid must piece together exactly what happened before the dragons wipe them all out for good. Meanwhile, half a world away and eight years wiser, Hiccup decides it might just be time to go home.

It's ten years after the sudden disappearance of a small boy from a village called Berk, and the village is in ruins. The dragon raids are more often and more intense every time. But then everything changes when they shoot down a Night Fury and it's rider...