Hiccup and his friends explore and add to their primary reference about dragons.
Quest roles:
Jay Baruchel(Hiccup Horrendous Haddock III (voice)), America Ferrera(Astrid (voice)), Christopher Mintz-Plasse(Fishlegs (voice)), Craig Ferguson(Gobber (voice)), Jim Cummings(Bork (voice)), Tress MacNeille(Bork's Wife (voice))