The film is set in a mythical world of Vikings and dragons. The story revolves around the boy Hiccup, who lives on Berk. When Hiccup is joined a dragon training with the same age friends, he regards this as an opportunity to prove that he has matured and is a true warrior. He freed and befriends with a dragon named Toothless. This relationship has completely changed his life as he struggles to convince his tribe that is not necessary to kill the dragon …