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Protagonists who need to Save The World
in Another Dimension
often find their original dimension endangered as well
Maybe you're Trapped in Another World
, fighting monsters and saving people so you can find your way home... and then you do
. Or maybe you've gone to another world after adventuring around your home, and found something a little too familiar about this place. Maybe you even go between worlds on a regular basis, and things are getting serious on the other side.
Either way, you discover the two worlds you've been flitting about in have a strange connection. It doesn't matter what it is, but it let you into the other world, and it can let something else out into yours. Generally it's monsters roaming the streets, but there can be other effects. If the more mystical of the worlds is based in a computer realm, expect a deadly effect on your hometown hospitals and roads
The other world's still in danger, but now so is yours
, and the Muggles
certainly can't do anything about it. What do you do? You grab your adventuring party and a couple of friends from your homeworld, and you go out to Save Both Worlds
Contrast with Up the Real Rabbit Hole
, where both worlds are in jeopardy but the heroes don't see the one that isn't their own as real enough to merit saving. May overlap with The Call Knows Where You Live
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Anime & Manga
- It turns out that Those Who Hunt Elves need to get back to their home dimension to prevent it from fatally merging with the one they've found themselves stuck in. So their quest to get sent back becomes all the more important.
- In MÄR, Ginta's world and MÄR Heaven are connected largely by Snow's existence as a clone created from a fragment of Koyuki's soul. The Orb is also the manifestation of all the evil in Ginta's world as well. His plan was to use the connection between Snow and Koyuki to rip open a giant portal between the worlds to conquer Earth as well. In the end, Ginta ends up saving both worlds and Snow and Koyuki merge into a single person. Note this is only in the anime, in the manga the connection is different and the Orb's plan... doesn't make a whole lot of sense.
- Planet Ladder features a girl who discovers that there are nine dimensional Earths engaged in war and are moving towards collision with each other. She is prophesied to be the "Girl of Anansi" who can save only one of these worlds, but journeys among all the worlds to search for a way to save them all.
- Sonic X: Towards the end of the second series, the two worlds are revealed to be merging into each other again, with the catastrophic effect of canceling out each others timelines and causing time to come to a stand still. The only solution is to send the Sonic characters home.
- Watashi no Messiah-sama starts off with Trapped in Another World, with occasional visits back home. Then monsters appear on Earth, and eventually Earth is threatened with destruction. Naturally, our heroes can't save just one of the worlds.
- Pretty Cure has this in every series.
- The second half of Last Action Hero has Danny returning to the real world and bringing fictional action movie hero Jack Slater with him. Unfortunately, Benedict is there as well, and he's got the ticket to travel between movies and the real world to bring through anything he wants.
- Sort of done in MirrorMask. By saving the dreamworld, Helena also saves, symbolically, at the very least, her mother's life, and stops "her world" from being shattered. It's not as Narmy as it sounds.
- Technically, the titular heroine from May Bird series has to save "only" the Ever After world, but since all humans (including herself) will inevitably go there after death, this affect everybody on Earth as well. Not to mention that the Big Bad is actively interfering with Earth, too, and it's only a question of time when he wrecks the Earth directly.
- The Magician's Nephew, when Diggory lets Jadis loose in London and then in Narnia.
- In the Everworld books, it would be a bad thing if the gods crossed over into the world of our own, or if aggressive human men with guns crossed over into the world of Everworld. Both of these dangers threaten to happen over the course of the stories.
- Mark Anthony's The Last Rune series, which features characters spending time in, and crossing between, Earth and the otherworld of Eldh. These include multiple villains and world-threatening dangers.
- Coraline, where the titular heroine must beat the Other Mother to save her parents and stop Other Mother from kidnapping children.
- Stephen King's The Talisman sees Jack flipping between our world and the 'The Territories' in an attempt to save his Mother from dying, this also has the side affect of saving the Queen in The Territories as they share a magical link.
- Most of So You Want To Be A Wizard by Diane Duane is spent in an alternate universe where the Lone Power has already put out the sun. At the climax, the protagonists make it back into their own universe, but the Lone Power follows them through the worldgate and they have to stop it...
Live Action TV
- Arcana Heart: An angel with a God complex is trying to break down the barrier between the real world and the Elemental world. She almost succeeds.
- Sonic the Hedgehog has this happen twice. Once in Sonic Rush Blaze is trapped on Sonic's world with the Sol Emeralds. If the Sol Emeralds aren't returned, both worlds will be destroyed. Again in Sonic Rush Adventure, except Sonic and Tails discover they are trapped in Blaze's world. Eggman and Eggman NEGA team up at the end of the game to steal the Jeweled Scepter, which keeps the two worlds separated.
- Outcast: Opening the portal between the two worlds creates a black hole which will swallow up the Earth... unless you enter the alternate universe to figure out how to stop it. It turns out the alternate universe needs to be saved as well.
- Tales of Symphonia soon becomes this type. The Big Bad's Evil Plan alternates which world is in trouble but both ultimately have to be saved for either to have lasting peace.
- The Legend of Zelda: A Link Between Worlds: Link starts out trying to save Hyrule, but soon finds that its counterpart, Lorule, is in even worse shape. In the end, it looks as though Hyrule will be saved at the expense of Lorule, which would make this a subversion... but Link and Zelda then wish on the Triforce for Lorule's Triforce to be restored, saving Lorule, and making this Double Subverted.
- The heroes of The Dragon Wars Saga must save the magical world they're stuck in to save Earth.
- A key trope in the web fiction serial Dimension Heroes, in which the Dimensional Guardians must find a way to stop two dimensions from colliding with one another.
- One episode of The Super Mario Bros. Super Show brings Mario and Luigi back to Brooklyn, but also Bowser and company as well. They have to save Brooklyn and the Mushroom Kingdom from Bowser.
- An episode of the Dungeons & Dragons cartoon had the kids finally get back to their own world, but Venger followed.
- In Barbie And The Secret Door, the heroines must save the magic of all realms, and thus, all the worlds.