With little time to lose, Hiccup and Fishlegs must find a way to cure Toothless and get the ingredients for the cure back to Berk. In the task you have to cross the island of dragons from one end to the other, at night, with no dragons, and 1 weapon. While down there, Johann and Krogan decide that Viggo is no longer useful and collapse the cave entrance leaving him trapped with a Monstrous Nightmare. When Astrid runs out of ideas, it's Tuffnut's tricks that manage to give them the advantage while Ruffnut escapes on Windshear. Using a Skrill as a diversion, Hiccup and Viggo enter their headquarters where Viggo betrays Hiccup to earn favor with Johann and Krogan once more. The other riders interrogate the hunters for information on their whereabouts and trick them into sending word to the arena and following the Terror to their location. Before leaving, Alvin arrives with reinforcements to help keep Berk safe while Stoick is recovering.
Meanwhile, Krogan and Viggo obtain the lens, setting the true mastermind behind the Hunters, Johann, one step closer to finding the King of Dragons. To make things worse, the ingredients needed to cure the illness are in Toothless' satchel and all but Fishlegs are caught sick. Ryker meets with Hiccup demanding the Dragon Eye, but Heather manages to foil his plan to take it and Ryker instead seals them in the cave, using them to flush out three Snow Wraiths. Stoick decides to leave, but Hiccup helps him see things from the Jorgensons' point of view and convinces him to return, but when more Singetails arrive, Spitelout decides to abandon the island, stating they will build another storehouse elsewhere. The riders, Heather in particular, refuse to listen and head in anyway, leaving Dagur to take charge and sacrifice himself to allow the riders to escape.
Hiccup and Fishlegs face continuous difficulties working together to deliver the egg, and things are made worse when a pack of wild Fire Terrors inhabiting the cave kidnap the egg. Hiccup and Fishlegs develop a mixture of Deathsong amber and Gronkle Iron to stop the lava bursts, but while gathering materials, Hiccup and Astrid discover an older Garff mortally wounded, hinting that the Hunters, who are now led by the masked man who tried to abduct Hiccup and has the ability to control dragons, are continuing activity. Hiccup refuses, but Viggo reveals that he has poisoned Toothless with Red Oleander, and that Toothless will die in three days if they do not recover an antidote from Johann. Archived from on August 8, 2012. Fishlegs believes he has found the perfect candidate, but it turns out to be home to Slitherwings, venomous serpentine dragons that poison Stormfly as she defends Garff to trigger strange wild behavior. Hiccup still manages to free the Submaripper, and it rescues him just as the bell shatters, leaving Ryker to take a desperate Viggo away just as the other riders close in.
Convinced that Hookfang has reverted to his old feral nature, Snotlout decides to resign from being a dragon rider. They learn that Dagur has been working undercover trying to save Shattermaster from the Hunters, convincing the two to help him save his dragon and the captured Gronkles. Using a supply of bolas from the ship, they lure the Flyers into a storm, causing the Flyers to be struck by lightning. Ruffnut is captured by the hunters, whose armada is approaching Dragon's Edge, leaving defense of the island to Astrid and Tuffnut alone. He apparently has been hunting for many nights and has gone, well, Berserk. According to , executive producer for How to Train Your Dragon, the series was planned to be much darker and deeper than 's previous television series spin-offs, with a similar tone to the movie. The dragon riders fight off the Changewings and free the leader.
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. After discovering that the Bork notes are fakes made by the Outcasts, the duo tries to flee, but are captured by Alvin. Get ready for jaw-dropping twists and turns as Hiccup finally unearths the true leader of the Dragon Flyers, an unlikely ally makes a sacrifice for the Riders, and the fate of all dragon-kind is put at risk. Tuffnut learns to put the needs of the team before his own and saves the others by sacrificing his Macey and freeing the others. With the Flightmare's mist, the Eye is reactivated, giving Viggo full access to its powers.
Hiccup uses his flight suit to win the trust of the wild dragons and leads them in a counterattack that fends off Ryker and his group. Because their slow speed had previously allowed an Outcast boat to escape, Fishlegs decides that producing Gronckle Iron is a more helpful task than flying with the other teens, until Meatlug ends up ingesting a magnetic rock, attracting all the metal in the village-including Hiccup's metal leg. Though still doubtful, Hiccup and the others scramble to keep the siblings from noticing each other by sending Heather away while offering Dagur a Gronckle he names Shattermaster to get him to leave, but they cross paths anyway. Toothless appears to be the only exception until he too begins to rebel, but the riders discover to be the true cause to be freshwater-dwelling parasitic dragons called Grimoras. The trapped Bewilderbeast, with its ability to control other dragons, calls for help from all available dragons, among them are Garffiljorg, the Eruptodon, the Screaming Death, the Frozen Skrill, Thornado, Bing, Bam and Boom and every dragon the Riders ever encountered. Though Viggo manages to get away with Berk's gold, the dragons are still rescued, which Gobber assures Hiccup counts for something.
However, Hiccup had already deduced Johann was the mole thanks to the twins and is able to escape thanks to Toothless. Meanwhile, Fishlegs discovers Dragon Root, which could end up affecting not just Stormfly and Hookfang, but all their dragons. Before Johann can finish Hiccup, he is frozen by the Bewilderbeast. In an attempt to free their dragons all of the group apart from Hiccup get trapped by the dragon. Snotlout is reassured that he will be great, but he will follow his own path instead of his father's. In the end, Heather decides to leave, saying she has much she needs to figure out. Stoick threatens Ryker to tell Viggo to call off the bounty and the masked man, seeing no chance to take Hiccup to Viggo himself, escapes.
The young Speed Stinger decides to help the riders chase off the pack, and with its help and Hiccup's new wingsuit, drive the Stingers back across the sea. It's dangerous behavior forces the other Gronckles to leave and seek refuge on Dragons' Edge, much to everyone's dismay. They identify the rider's dragon with the Dragon Eye as a Razorwhip and pursue it to a remote island. To try and find an alternate method to victory, Hiccup and Toothless travel alone to Storehouse Island to study the Singetail and find behaviors that will give them an advantage in battle, but this attempt quickly leaves Hiccup at its mercy. The rush of events leaves Heather torn between her loyalties to the riders and wanting to join her brother on his current journey to find their missing father Oswald the Agreeable and rebuild the Berserker Tribe.
Season 5 of Dragons: Race to the Edge lands on Netflix August 25! The Dragon Riders and Dragon Hunters face off in an epic race to collect the remaining Dragon Eye lenses in all-new episodes of DreamWorks Dragons: Race to the Edge! Hiccup tries to tame the imprisoned dragons while Toothless battles in the arena, soon pitted against the resident champion, the Triple Stryke. DreamWorks Dragons was the first DreamWorks Animation series to air on Cartoon Network rather than. Hiccup manages to match Viggo's wit and free the Flightmare and Heather with unexpected help from Dagur, but once again Viggo turns the tables and manages to snatch away the Dragon Eye. They enforce their royalty rights immediately getting the other riders doing meaningless and annoying tasks. Mala is finally convinced that the riders are allies of the dragons and the two groups align to defeat the hunters for good. Using the baby Razorwhips, the Wingmaidens defeat Flyers. 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.
The teens have to stop the Screaming Death before it reaches Berk. Unknown to them, a new species of dragon living on the Island, known as the 'Night Terrors', lives there too, and they ambush and scare Tuffnut. Blinded by their grudge against each other, Toothless runs away to confront the rival alone. Towards the end of her mission, Astrid learns and confirms Heather's true motives for helping the Outcasts-freeing her parents. The Riders and wild dragons defeat the hunters while the Bewilderbeast escapes.