Gone Gustav Gone
- Episode aired Jun 26, 2015
- 23m
When Dagur the Deranged captures Gustav, it's up to Hiccup and the Dragon Riders to get him back.When Dagur the Deranged captures Gustav, it's up to Hiccup and the Dragon Riders to get him back.When Dagur the Deranged captures Gustav, it's up to Hiccup and the Dragon Riders to get him back.