The mysterious theft of metal objects all over Berk reveals the presence of marauding Smokebreaths. Hiccup and Toothless soon discover that these dragons are the work of Dagur, in a plot to render Berk defenseless.
Elenco:
Jay Baruchel
,
America Ferrera
,
Christopher Mintz-Plasse
,
T.J. Miller
,
Zack Pearlman
.