After Mildew poisons all the dragons on the island, he is forced to help Hiccup, Stoick, and Gobber find and capture the ferocious Scauldron in order to get the antidote.
Quest roles:
Tim Conway(Mulch (voice)), Stephen Root(Mildew (voice)), Thomas F. Wilson(Bucket (voice)), Chris Edgerly(Gobber (voice)), Brook Chalmers(Berkian Man (voice)), Michael Goldstrom(Trader Johann (voice)), Julie Marcus(Ruffnut (voice))