The movie is set in a fabulous universe of Viking and dragon. The narrative revolve around the boy hiccough, who populate on Berk. When hiccough is join a firedrake preparation with the same age friend, he see this as an chance to turn out that he has mature and is a true warrior. He free and befriends with a firedrake name Toothless. This human relationship has wholly change his life as he fight to convert his folk that is not necessary to kill the firedrake …