Dragons: Race to the Edge - 6 ª Season

While searching for gemstones. Johann drives Hiccup to the Sandbuster's lair and Johann helps Hiccup find all the required gems and then Johann reveals his deception and demands Hiccup the dragon eye lenses.

Stoick and Hiccup argue as Stoick is determined to procure willow bark for Berk while Hiccup has a nagging suspicion that all is not what it seems. Three traders compete to become Berk's new supplier.

The Riders host a meeting on Defenders of the Wing Island to discuss the threat Johann poses, however, Dagur and Mala constantly disagree with each other's ideas. Through Ruffnut and Tuffnut's mediation, Dagur and Mala actually get along and develop a mutual attraction for one another. Meanwhile, Hiccup and Snotlout travel to Wingmaiden Island to escort Atali to the meeting, where Atali leaves her second-in-command, Minden, in charge of the island, though Minden is upset at not being allowed to attend the meeting as well. When a fire breaks out on the other side of the island, Minden orders all the guards to put it out, leaving the Wingmaidens defenseless to a surprise attack from the Flyers, resulting in Atali being injured and knocked out. Feeling guilty over her mistake, Minden, with Snotlout's aid, recovers the hidden Dragon Eye lens on their island, which the Flyers have come for. After her repeated failures, Minden loses hope and confidence in herself and quits being a Wingmaiden, but is inspired by Snotlout not to give up. Using the baby Razorwhips, the Wingmaidens defeat Flyers.

After learning his ancestors were dragon hunters who killed off the Dramillions, Fishlegs sets out to Dramillion Island with Astrid (against Hiccups wishes) to find and help protect the Dramillions from harm. Before setting out, he remembers his dragon scouts are coming and leaves the twins to look after them. After arriving, he immediately finds one and tries to train but discovers it is very aggressive and has the unusual ability to mimic the fire blasts of other dragons, such as a Gronkle's lava blast and Nadder's magnesium fire breath. While searching the island for more, they discover a group of hunters, who are following the teachings of his ancestor, Ingard Ingerman in trapping Dramillions and using them to help train new recruits. When the hunt begins, Fishlegs and Astrid combine Meatlug and Stormfly's fire to destroy the shackle that grounds the Dramillion. Though they realize that they won't have enough time to save them all, the Dramillions learn the technique to destroy the shackles themselves and are able to free each other. While this is happening the twins and Snotlout teach the scouts some of their 'ways' and lose track of them.

Hiccup grows weary when Gruffnut arrives on the twins' 19th birthday to administer a Thorston coming of age ritual involving three dangerous challenges.