Hiccup runs away at the age of 15 after meets toothless and before the final trial. He then meets a girl named Elsa who is the same age as him and is a princess of a kingdom called Arendelle with ice powers. It turns out that how similar their lives are. Will Elsa's family welcome Hiccup with opened arms? Will Hiccup and Elsa fall in love with each other? [Hiccup, Elsa]