My Own Destiny

Is your destiny sealed the moment you are born? Arguments are common in Berk, when an argument between Hiccup and Snotlout gets out of hand, Snotlout leaves Berk. With Hookfang, Snotlout starts on a journey to learn the meaning of his destiny in the world. Something evil is lurking behind all of this, and when a dragon-rider washes on shore at Berk, why is someone killed?