History WesternAnimation / HowToTrainYourDragonTheHiddenWorld

* BrokenAesop: The Viking chief Hiccup and his dragon Toothless ultimately decide that dragons and Vikings should be separate for their safety, and the dragons can return when humans "deserve" them. This is meant to be a hard choice made for the greater good demonstrating what love is. But the movie never really demonstrates exactly why this choice needs to be made. There are antagonistic figures like Grimmel and the warlords, but they are defeated, and aside from them, it's not shown what the world at large thinks about dragons. This gets even worse in the follow-up special ''WesternAnimation/HowToTrainYourDragonHomecoming'', which shows the next generation of Vikings have grown fearful and superstitious of dragons, specifically because of their absence. Hiccup tries to make a pageant to convince them otherwise, but this ends up a near-disaster, and in the end, [[spoiler:it only succeeds because Toothless returned]]. So the separation between Vikings and dragons is shown to be the wrong choice, which has deepened the divide, and only the dragons' return fixed that divide.

* BrokenAesop: Wild animals should live free and undisturbed in the wild. Also, we as a human race need to be better so that dragons will come back and we can play with them and ride on them again.

** In addition Grimmel also says that Night Fury dragons cannot fly for long distances without resting because when traveling they need to take breaks on some islands before they can continue on (If a Night Fury is tired/sleepy they are easy prey to catch), Toothless has shown no aversion to being tired from flying from long distance, he still can be physically and mentally active and not be easy prey to catch. when traveling they need to take breaks on some islands before they can continue on. When Night Furies are tired/sleepy they are easy prey to catch.
* InstantSedation: Grimmel's [[PoisonedWeapons poison arrow]] shoots the Light Fury right out of the sky. The same happens to Toothless during the climax.

* BittersweetEnding: [[spoiler: Though the village and the dragons are saved from Grimmel and are still thriving until the rest of the world is ready to live in harmony with them, the dragons decide to retreat to live in the Hidden World. Years later, when both have families of their own, Hiccup and Toothless reunite.]]

* LighterAndSofter: Although it has its darker and more emotional moments, [[spoiler:particularly with the dragons leaving]], the film is much more humorous and laid-back than the second film. The film has [[spoiler:no major character deaths]], and even its villains are much more LaughablyEvil compared to the [[KnightOfCerebus near-completely humorless Drago]].

** While Drago was leader to the Warlords, the warlords in-turn hired Grimmel to help take down Hiccup.

** Drago wanted to enslave dragon-kind so that he could later move to conquering humanity, while Grimmel is an EgomaniacHunter that would prefer killing all dragons, starting with the Night Furies.

* ContrivedCoincidence: The [[spoiler:time skip at the end of the film has Hiccup and his family traveling to find Toothless. Despite Toothless having moved to the hidden world, Hiccup finds him, the Light Fury and their hatchlings chilling on some rocks on the surface at the same time they decide to search for them.]]

** While a captured Ruffnut mocks Grimmel for his "long face", she acknowledges that she also has vertical facial features before mocking his for being ''much'' longer.

* InformedFlaw: Grimmel reasons that Hiccup hasn't taken the dragons North because Fury dragons cannot survive in the cold. Toothless showed no aversion to the cold when staying at Valka's ice sanctuary in the second film, and in this film both Toothless and the Light Fury are shown flying high in the clouds, where the temperatures would be very low.
* InstantSedation: Grimmel's [[PoisonedWeapons poison arrow]] shoots the Light Fury right out of the sky. Same happens to Toothless during the climax.
* IWantMyBelovedToBeHappy: [[spoiler: Hiccup comes to the platonic version of this with Toothless. When Toothless successfully woos the Light Fury and is taken to the Hidden World, Hiccup becomes restlessly worried when he does not come back. When he, Astrid and Stormfly find him, seeing that he is perfectly at home in the Hidden World with the Light Fury, he mournfully realizes that he would be happier there than he would be with him and decides to leave. He tells Toothless that he should go back when he brings them back to New Berk, and after they successfully defeat Grimmel and the warlords, Hiccup says his goodbyes to Toothless, knowing that he and the other dragons would be safer there than with him and his tribe.]]

* AmazinglyTechnicolorWorld: The Hidden World holds many brightly colored crystals, coral, and fungi adorning the place. Some of the structures covered with fungi even glow in the dark to better illuminate their colors.

** In the second movie, Hiccup irritatedly brings up that Toothless' saliva 'doesn't wash out' when the latter licks him. Turns out it makes a very effective coloured glue/fireproof coating when mixed with crushed dragon scales for the riders' armoured flight-suits/Toothless' new tail.

* HordesFromTheEast: One of the warlords is Chaghatai Khan, who is implied to be Mongolian.

* InformedFlaw: Grimmel reasons that Hiccup hasn't taken the dragons North because Fury dragons cannot survive in the cold. Toothless showed no aversion to the cold when staying at Valka's ice sancutary in the second film, and in this film both Toothless and the Light Fury are shown flying high in the clouds, where the temperatures would be very low.

-->'''Hiccup:''' There were dragons, when I was a boy. There were great, grim sky dragons that nested on the cliff-tops like gigantic, scary birds. Little brown, scuttly dragons that hunted down the mice and rats in organised packs. Preposterously huge sea dragons that were twenty times as big as the big blue whale.

** On the other hand, this trope also extends to the army's mismanagement, as Drago's unexpected loss at Berk still caused internal chaos within its leadership. The Warlords now in command are not nearly as competent or organised as Drago himself was, and mostly rely on Grimmel to do the hard work [[spoiler:until he double crosses them, by which point they're utterly powerless to do anything other than watch]].

* ArtEvolution: According to the creators, the new animation quality they developed for this film makes ''How to Train Your Dragon 2'' look ''dated''. Indeed the animation here is smoother, more detailed with finer gesturing with the characters.

* BittersweetEnding: [[spoiler: Though the village and the dragons are saved from Grimmel and are still thriving until the rest of the world is ready to live in harmony with them, the dragons retreat to live in the Hidden World, and fade into myth. Years later, when both have families of their own, Hiccup and Toothless reunite.]]

* BrokenAesop: Wild animals should live free and undisturbed in the wild. Also, we as a human race need to be better so that dragons will come back and we can play with them and ride on them again.

* ArtisticLicenseMedicine: Even assuming Hiccup's craftmanship is capable of holding up [[spoiler:for 10 years, prosthetics can't be worn for an indefinite amount of time. They need to be cleaned and removed from time to time because even the best ones rub and chafe. Toothless's situation, in real life, would have gotten very gruesome very fast.]]

'''Character tropes (humans & dragons) go on to the respective [[Characters/HowToTrainYourDragonFilms Character Sheets]].'''

''How to Train Your Dragon: The Hidden World'' is the second sequel to ''WesternAnimation/HowToTrainYourDragon''. It was written and directed by Creator/DeanDeBlois (writer and director of the first two films), and was the first film by Creator/DreamWorksAnimation to be distributed by Creator/{{Universal}}.

What began as an unlikely friendship between an adolescent Viking and a fearsome Night Fury dragon has become an epic trilogy spanning their lives. In this next chapter, Hiccup and Toothless will finally discover their true destinies: the village chief as ruler of Berk alongside Astrid, and the dragon as leader of his own kind. As both ascend, the darkest threat they’ve yet faced—as well as the appearance of a female Light Fury—will test the bonds of their relationship like never before.

** The Deathgrippers have features of scorpions and pincer-like claws reminescent of a praying mantis, playing on the nightmarish factor of BigCreepyCrawlies.

** In the second movie, Hiccup irritatedly brings up that Toothless’ saliva ‘doesn’t wash out’ when the latter licks him. Turns out it makes a very effective coloured glue/fireproof coating when mixed with crushed dragon scales for the riders’ armoured flight-suits/Toothless’ new tail.

** At the end of the movie, [[spoiler: as they are going their separate ways, Hiccup touches Toothless’ snout in the exact same way he did at their first meeting.]]

* ScaryImpracticalArmor: While this is generally averted in that most of the riders now have flight suits that are quite practical and protect them from fire and make them look intimidating while on missions, Snotlout’s is the only one that is made more useless by it. His BadassCape repeatedly [[CapeSnag snags]] whenever he tries to make a ThreePointLanding and his helmet done in Hookfang's likeness has a bad habit of being knocked at an angle, leaving him blind during fights. He also neglected to fireproof his butt.

* CostumeEvolution: Like Hiccup's wingsuit from the seocnd film, the Riders now wear flight suits and helmets that are coloured and customised to resemble their respective dragons. Most likely due to the [[ArtEvolution improvements in animation quality]], these armors are incredibly detailed with the dragons' own scales.

* CostumeEvolution: Most likely due to the [[ArtEvolution improvements in animation quality]], the riders now wear incredibly detailed scale-patterned battle armour that is coloured and customised to resemble the appearance of their particular dragon. Like Hiccup, [[https://vignette.wikia.nocookie.net/howtotrainyourdragon/images/e/ee/Astrid_.The_Hidden_World._Poster.png/revision/latest?cb=20180630081430 Astrid]] now has a masked helmet that features back horns to resemble her dragon, Stormfly.

* GivingThemTheStrip: [[spoiler:When Hiccup and Grimmel plunge off the Light Fury, Grimmel is trying to claw his way up Hiccup's body. Hiccup undoes his prosthetic leg and Grimmel plunges to his death clinging to it.]]

* InformedFlaw: We don't really see much of the Fury dragons' apparent aversion to the cold. At the altitudes Toothless and the Light Fury are seen flying, temperatures would be very low especially when surrounded by clouds.

** Despite Drago Bludvist's defeat and subsequent disappearance, his human army is still significantly large in number and has fallen under the command of several Warlords. Just because their cult-like leader is gone doesn't mean there aren't other people with authority who want or have been convinced to want the same goal.

* ThrowingYourSwordAlwaysWorks: Hiccup tosses Inferno at a group of leaking barrels containing Zippleback gas, causing them to explode and set fire to the ship they're on.

* MookHorrorShow: [[WhatAnIdiot Drastically averted]] by Hiccup at the beginning as he tried to convince a poor mook that he is not a demon.

** The Light Fury has behaviors very similar to a cat, in contrast to ToRothless' dog-like loyalty (though he has quite a lot of feline traits as well.)[[spoiler: This theme carries over to their hybrid offspring, which have markings similar to tuxedo kittens.]]

* AlternativeForeignThemeSong: In the dubbing into Latin American and Castilian Spanish, during the credits you can hear the song "El Cielo Nunca Cambiará" by the singer Melendi

** The Light Fury has behaviors very similar to a cat, in contrast to Toothless' dog-like loyalty (though he has quite a lot of feline traits as well.)[[spoiler: This theme carries over to their hybrid offspring, which have markings similar to tuxedo kittens.]]

* RealityEnsues:
** It's mentioned that Berk has become seriously overcrowded due to the excess amount of dragons that Hiccup has brought in.
** Gobber also points out that Hiccup can't just go off on adventures like he used to and has a responsibility to watch over Berk as chief.
** Dragons are ''not'' domesticated animals and have been living with humans only a few years so, as beautiful as Hiccup and Toothless's friendship is, once a suitable mate appears, Toothless's instincts take over and he starts prioritizing courting the Light Fury over almost anything else.
** Drago Bludvist's army is a driving force in the film and still significantly large in number. The army is now commanded by several Warlords. Just because their leader is gone doesn't mean there aren't other people with authority who wanted the same goal.

* CentralTheme: ThePowerOfLove. Toothless falls in love with the Light Fury and spends the whole movie hoping to impress her. Hiccup's love for Toothless and dragon-kind has always been a motivating factor for him. Hiccup believes that fighting to keep Toothless and the dragons is a way of expressing that love, [[spoiler: but eventually realizes that loving him means letting him go and allows him and the dragons to leave to the safety of the Hidden World.]] As Hiccup's {{Foil}}, the antagonist Grimmel the Ghastly believes that Hiccup's love for them is weakness, his own desire for Toothless and the Light Fury purely selfish in nature. In the DarkestHour, Grimmel is proven wrong. [[spoiler: Hiccup's willingness to let go (freeing the Light Fury [[HeroicSacrifice at the cost of his own life]] so that she could save Toothless) leads to the Light Fury saving him while Grimmel, who has no one, to plummet to his death]].

** Toothless's [[AllAnimalsAreDogs doglike mannerisms]] are much more pronounced here, and his snark and intelligence are far less prominent. Hiccup even occasionally speaks to him in a baby voice, the way people often do when speaking to their pets -- something he rarely did in previous films.

* CentralTheme: ThePowerOfLove. Toothless falls in love with the Light Fury and spends the whole movie hoping to impress her. Hiccup's love for Toothless and dragon-kind has always been a motivating factor for him. Hiccup believes that fighting to keep Toothless and the dragons is a way of expressing that love, [[spoiler: but eventually realizes that loving him means letting him go and allows him and the dragons to leave to the safety of the Hidden World.]] As Hiccup's {{Foil}}, the antagonist Grimmel the Ghastly believes that Hiccup's love for them is weakness, his own desire for Toothless and the Light Fury purely selfish in nature. In the DarkestHour, Grimmel is proven right as Hiccup bringing Toothless and the Light Fury back to New Berk leaves them (and by extension, the rest of the dragons on New Berk) vulnerable to be enslaved by the warlords. [[spoiler: Hiccup's willingness to let go (freeing the Light Fury [[HeroicSacrifice at the cost of his own life]] so that she could save Toothless) leads to the Light Fury saving him while Grimmel, who has no one, to plummet to his death]].

* NeverTrustATrailer: Due to the movie being rushed out, a ''very'' substantial portion of the first trailer is made up of cobbled together scenes that outright didn't happen in the film. This includes, but is not limited to, Hiccup rallying the Berkians on a cliff, the Light Fury growling in a cage, Toothless and the Light Fury meeting in a clearing, and Hiccup affectionately telling Toothless that, "It's you and me, bud...always."

* AdaptationExpansion: The original quote from the book series stated that "no one" knew why the dragons were disappearing. The quote from the film's trailer starts out identical to the book ("There were dragons, when I was a boy"), but goes on to say that "only a few know" where they went. The film gives an explanation for their disappearance contrary to the book.