Dragon Eye of the Beholder Part 1.Dagur the Deranged escapes from the Outcast prison which he has been confined to for the past 3 years. He now aims to take revenge on Hiccup. Meanwhile while the dragon riders are trying to track him down they come across a mysterious device (the 'Dragon Eye'), and after a struggle with Dagur all of the group, apart from Hiccup, are trapped on a sinking ship with Hiccup having to decide between retrieving the 'Dragon Eye' from Dagur, or saving his friends from certain death.