The Skrill returns with a grudge against Hiccup and Toothless, and the Dragon Riders must choose a new course of action to stop the vicious dragon.

The episode was rated 7.74 from 125 votes.

When a pair of outcasts visits the Edge seeking the help of Thor Bonecrusher, Fishlegs allows Snotlout to hypnotize him to evoke his mighty alter ego.

The episode was rated 7.74 from 46 votes.

After Hiccup and Toothless heroically save Barf and Belch, the grateful Zippleback tries to repay its life debt by abandoning riders Ruff and Tuff.

The episode was rated 7.73 from 124 votes.

Fireworms invade Dragon's Edge, while Ruffnut and Tuffnut discover that they have an unexpected connection to the island.

The episode was rated 7.73 from 171 votes.

Tuffnut is eager to impress his visiting cousin, Gruffnut. But Ruffnut is suspicious of his real reasons for coming to Dragon's Edge.

The episode was rated 7.71 from 85 votes.

To ensure the future survival of Mala's tribe, she and Hiccup must deposit a newly laid Eruptodon egg into the deadly Grand Volcano so it will hatch.

The episode was rated 7.63 from 65 votes.

When the twins fly to the Northern Markets to get Tuffnut's mace fixed, a chance turn of events lands them inside a secret Dragon Hunter operation.

The episode was rated 7.60 from 65 votes.

Thinking he's allergic to his dragon, Fishlegs gets hypnotized. He wakes up transformed into an invincible warrior known as Thor Bonecrusher.

The episode was rated 7.56 from 166 votes.

When Ruffnut refuses to become Throk's bride because it would mean leaving her twin, Tuffnut fakes his own death to give her the freedom to marry.

The episode was rated 7.56 from 45 votes.

While trying to stabilize the volcano that threatens to destroy Dragon's edge, the Riders discover troubling evidence of new Hunter activity.

The episode was rated 7.31 from 55 votes.