Hiccup and Toothless return from a mission to find Berk mysteriously empty. They discover that the village has been overrun by Speed Stingers, a venomous non-flying dragon that has trekked across the frozen sea to Berk.
Elenco:
Jay Baruchel
,
America Ferrera
,
Christopher Mintz-Plasse
,
T.J. Miller
,
Zack Pearlman
.