The stakes are higher than ever as Hissup and Toothless face off against a new band of ruthless Dragon Hunters. Ryker and his army storm Dragon's Edge with a plan to capture more dragons, the dragon riders and the secret-filled Dragon Eye. As they battle these new opponents, Heather goes undercover, Astrid and Tuff defend their turf and Hiccup must outsmart the Hunters to overcome their sheer physical force.