A witch known as Skuld the Sorceress comes to Berk and threatens the townsfolk - then plunges Berk into darkness! As the citizens of Berk panic, it's up to Hiccup and his friends to try and stop Skuld and her minions! Plus a bonus short story, "Cruel to be Kind," as Hiccup and friends take their lives into their own hands and try to train Clumsy the Scauldron!