Dragons: Race to the Edge

On an island that will make the perfect outpost, the Dragon Riders discover its indigenous residents are a mysterious new breed of dragon.

Hiccup and the Dragon Riders journey to Glacier Island to find the Snow Wraith, a fearsome dragon that holds the key to the Dragon Eye's mysteries.

The Dragon Riders discover a lush island that turns out to be the home of the Deathsong, a massive dragon that threatens to trap them forever.

On an island that will make the perfect outpost, the Dragon Riders discover that the indigenous residents are a mysterious new breed of dragon.

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

When Dagur the Deranged captures Gustav, it's up to Hiccup and the Dragon Riders to get him back.

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

As a Rumblehorn wreaks havoc on Dragon's Edge, Hiccup seeks the help of Stoick, who forms an unexpected bond with the rampaging beast.

Fishlegs and Meatlug liberate the Gronckles from a menacing dragon that has encroached on their ancestral home, Dark Deep.

While gathering supplies, the riders hear of a rogue dragon rider attacking ships and stealing their provisions. They identify the rider's dragon with the Dragon Eye as a Razorwhip and pursue it to a remote island. One by one the riders are picked off by the rogue until Hiccup and Toothless chase her down and she reveals herself to be Heather, with her new dragon Windshear. The group mostly welcomes her back with open arms, but Hiccup is suspicious of her new, more aggressive behavior. Following her to Trader Johan's ship, Hiccup interrogates Johan and learns that Heather's island was attacked and her parents killed by Dagur, who she pursues for revenge while stealing supplies to help rebuild. Heather meanwhile tracks down Dagur alone but is captured by his new armada.

Hiccup manages to rescue Heather, and though she is still determined to take revenge, Hiccup persuades her to leave it for another day. On the way back to Dragons' Edge, Heather reveals that the parents she lost were adoptive, and all she has to remember her birth father is an old horn. When they return, the riders re-welcome Heather while offering their support and she and Astrid take the time to bond. Together they meet with Johan who reveals Dagur's plans to purchase new dragon-proof ships and weaponry, and they convince the riders to launch a surprise attack. They manage to successfully capture Dagur, but Hiccup intervenes before Heather can kill him, revealing that her horn was a gift from Stoick to Oswald the Agreeable, her father, meaning that Dagur is her brother. Dagur offers her the chance to join with the Berserkers, but she refuses. In the end, Heather decides to leave, saying she has much she needs to figure out.

Hiccup and the Dragon Riders rescue a wounded Speed Stinger and take it back to Dragon's Edge, unaware of the dangers that follow.

The riders are in the middle of training when Hookfang begins behaving strangely after hearing a mysterious call. Following him, the riders find that he has mated with a female Monstrous Nightmare. Convinced that Hookfang has reverted to his old feral nature, Snotlout decides to resign from being a dragon rider. When he returns to say goodbye, however, he discovers that in reality, Hookfang has been helping the female protect her eggs from a Titan Wing Monstrous Nightmare. Snotlout and Hookfang join forces to gain dominance over the Titan Wing and drive it away, saving the eggs and their mother.