Hiccup and the gang start a secret club to prepare for the Outcast offensive. ...

When Meatlug accidentally ingests magnetic rocks, she becomes magnetic herself - causing destruction through the town, but ultimately helping the kids win a battle agains ...

The kids go on a dragon survival training mission to Dragon Island, where they encounter Dagur, the Berserker Chief, who has become obsessed with hunting the Night Fury. ...

Hiccup discovers that the town's water shortage has been caused by the Outcasts' plan to hide Whispering Death eggs under Berk, which soon hatch and tunnel underthe islan ...

Hookfang is losing his ability to catch on fire, and it's up to Snotlout, Hiccup and the others to find the lair of the Fireworm Queen, which may hold the only possible c ...

Hiccup must help Astrid face her fear of the terrifying Flightmare, a ghostly dragon that seemingly froze her uncle with fear, shaming her family name. With Fishlegs' hel ...

A Terrible Terror training competition leads to a heated rivalry between Fishlegs and Snotlout, allowing Alvin to kidnap Meatlug. The kids must use their newly trained Te ...

When dragons start fleeing to Dragon Island, the defenders must find out why the islands are disappearing. ...

Barf and Belch are Tuffnut's only guard when he gets caught in an old dragon trap in the forest. Things go from bad to worse when Tuffnut is faced with not only a large T ...

When the dragon riders discover a frozen Skrill, a lightning-powered dragon revered by the Berserkers, they scramble to get it off Berk. But when the Skrill is thawed and ...

Tuffnut goes undercover to help the defenders rescue a Skrill. ...

Snotlout becomes convinced he is dying, and leaves Hookfang to Gustav. But when he miraculously recovers, Snotlout takes his dragon back, and Gustav decides to get a drag ...

Hiccup and co. discover an injured Scauldron on the shores of Changewing Island. The kids must heal the dragon and return him safely to the ocean, before he falls victim ...

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 drago ...

Hookfang and Stormfly quarrel while the town prepares for the harvest. ...

Toothless catches a flu that spreads throughout Berk. ...

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 ...

When three adolescent Thunderdrums attack the village, only Stoick's Thornado can bring chaos to order. ...

Snotlout is expelled from the academy; Alvin returns to Berk to make amends. ...

Hiccup cautiously accepts Alvin's help on a mission to rescue Stoick from Dagur's clutches. The dragon riders, the Berserkers and the Screaming Death all converge on Outc ...