The events take place in a viking village, where everyone has interesting names and has been battling dragons since ancient times. In this village, every viking has definitely fought with a dragon, and the children are preparing for the future. Besides, the son of the chief of the tribe Hiccup, cannot come into the eyes of the village's dignitaries with his frail structure. Hiccup catches a dragon called "Night Fury" that no one has ever seen; but he just couldn't kill it. So, they'll have a bond after this event and Hiccup will find out why dragons are attacking their village.