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* The mission of Samaritan in ''ComicBook/AstroCity''. He actually did set things right before the series started, but now his own time period has [[StrangerInAFamiliarLand changed beyond recognition]].
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* The mission of ''ComicBook/AstroCity'':
** Samaritanin ''ComicBook/AstroCity''. He actually did set things right before was originally from the series started, but now his own 35th century, when mankind was nearly extinct. In a desperate attempt, he was sent back in time period has [[StrangerInAFamiliarLand changed beyond recognition]].to stop the event that triggered his BadFuture. He arrived in 1985, accidentally infused with the primal energy of time and space, and barely managed to avert the ''Challenger'' shuttle explosion. He had saved the future and became a superhero, but at the cost of [[RetGone eliminating his original timeline and everyone in it]].
** This is a background event in "The Nearness of You". A time-manipulating supervillain ends up shattering time itself and endangering all of reality as a result. The heroes eventually managed to restore the timestream, but with [[CosmicRetcon some minor differences...]]
** Samaritan
** This is a background event in "The Nearness of You". A time-manipulating supervillain ends up shattering time itself and endangering all of reality as a result. The heroes eventually managed to restore the timestream, but with [[CosmicRetcon some minor differences...]]
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* ''[[ComicBook/RobinSeries Robin]]'': Tim Drake received a message from an apparent BadFuture warning him that one of the members of the [[BadassFamily Batfamily]] had turned into a KnightTemplar tasking him with preventing the change from coming to pass. The whole thing turned out to be a [[spoiler:[[SecretTestOfCharacter test]] orchestrated by Batman, who wanted Tim to be prepared for such an eventuality. Tim was not amused, especially as he'd already had to deal with the lunatic knight templar replacment Bruce picked after ComicBook/{{Bane}} broke his back and temporarily [[TenMinuteRetirement quit being Robin]].]]
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* ''[[ComicBook/RobinSeries Robin]]'': ''ComicBook/{{Robin|1993}}'': Tim Drake received a message from an apparent BadFuture warning him that one of the members of the [[BadassFamily Batfamily]] had turned into a KnightTemplar tasking him with preventing the change from coming to pass. The whole thing turned out to be a [[spoiler:[[SecretTestOfCharacter test]] orchestrated by Batman, who wanted Tim to be prepared for such an eventuality. Tim was not amused, especially as he'd already had to deal with the lunatic knight templar replacment Bruce picked after ComicBook/{{Bane}} broke his back and temporarily [[TenMinuteRetirement quit being Robin]].]]
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* In ''ComicBook/CivilWar'' storyline, the entire event was kicked off when Namorita, a member of the ComicBook/NewWarriors, fought a villain named Nitro whose ability was to explode. Said explosion killed hundreds, including Namorita herself. Because of this, Namorita's name was posthumously slandered with the rest of the ComicBook/NewWarriors, much to the chagrin of her ex-lover, Richard Ryder aka ComicBook/{{Nova}}, even though they'd been broken up for years at that point. In his eponymous series, Nova is plucked out of the timestream along with a Namorita who is obviously from an era not only before the Civil War incident, but while she and Ryder were still lovers. Later, when the cosmic forces that threw them together start to send them back where they belong, Nova (being a [[TheParagon Paragon-type]] character), refuses to let Namorita return to her own time (where she'll be doomed to repeat the same fate) and brings her to the present instead... consequences be damned.
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* In ''ComicBook/CivilWar'' ''ComicBook/{{Civil War|2006}}'' storyline, the entire event was kicked off when Namorita, a member of the ComicBook/NewWarriors, fought a villain named Nitro whose ability was to explode. Said explosion killed hundreds, including Namorita herself. Because of this, Namorita's name was posthumously slandered with the rest of the ComicBook/NewWarriors, much to the chagrin of her ex-lover, Richard Ryder aka ComicBook/{{Nova}}, even though they'd been broken up for years at that point. In his eponymous series, Nova is plucked out of the timestream along with a Namorita who is obviously from an era not only before the Civil War incident, but while she and Ryder were still lovers. Later, when the cosmic forces that threw them together start to send them back where they belong, Nova (being a [[TheParagon Paragon-type]] character), refuses to let Namorita return to her own time (where she'll be doomed to repeat the same fate) and brings her to the present instead... consequences be damned.
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* What ''[[Characters/SupermanSuperboyPrime Superboy Prime]]'' wanted to do during ''ComicBook/InfiniteCrisis'' by bringing back his earth and his other attempts to get back Earth-Prime. Ironically, he ended up succeeding with ''Infinite Crisis'' as Earth-Prime ended up reborn. [[IronicHell Unfortunately, everyone there knows what he did via comic books tuned into the multiverse and his parents and girlfriend end up being terrified of him.]]
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[[Episode or Character Plots]]
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[[SetRightWhatOnceWentWrong Setting Right What Once Went Wrong]] in ComicBooks
[[foldercontrol]]
[[folder:Series Plots]]
* ''ComicBook/{{Exiles}}'' was supposedly pitched as ''Series/QuantumLeap'' or ''Series/{{Sliders}}'' with superheroes.
* ''ComicBook/BoosterGold'' does this quite a bit as the secret protector of the time line. It's when he has to set wrong what once went right or keep wrong what once went wrong that things get really morally complicated for him.
* In ''ComicBook/CivilWar'' storyline, the entire event was kicked off when Namorita, a member of the ComicBook/NewWarriors, fought a villain named Nitro whose ability was to explode. Said explosion killed hundreds, including Namorita herself. Because of this, Namorita's name was posthumously slandered with the rest of the ComicBook/NewWarriors, much to the chagrin of her ex-lover, Richard Ryder aka ComicBook/{{Nova}}, even though they'd been broken up for years at that point. In his eponymous series, Nova is plucked out of the timestream along with a Namorita who is obviously from an era not only before the Civil War incident, but while she and Ryder were still lovers. Later, when the cosmic forces that threw them together start to send them back where they belong, Nova (being a [[TheParagon Paragon-type]] character), refuses to let Namorita return to her own time (where she'll be doomed to repeat the same fate) and brings her to the present instead... consequences be damned.
* In an issue of ''Marvel Two-in-One'', the Thing goes back in time to cure his past self of being an orange-skinned monster and change his own life, but only succeeds in creating an alternate timeline where a now-human Ben Grimm quits the ComicBook/FantasticFour and is replaced by Spider-Man. This becomes MakeWrongWhatOnceWentRight in a follow-up story, when it is revealed that the absence of the Thing on the FF results in [[PlanetEater Galactus]] succeeding in his initial attempt to feed on the Earth, leaving the remnants of humanity with a CrapsackWorld low in vital resources.
* In ''ComicBook/HelOnEarth'', the main antagonist, [[WellIntentionedExtremist H'el]], wants to travel back in time to before his home planet Krypton [[EarthShatteringKaboom exploded]], and prevent its destruction. However, the energy needed for the time travel would destroy our entire solar system. Not that H'el [[FantasticRacism cares about our solar system]].
* In ''ComicBook/AgeOfUltron'', Wolverine decides to go back in time and kill Hank Pym, who created the robot Ultron which would annihilate humanity in the present. However, by killing Hank Pym, Wolverine creates a new dystopian timeline where the Avengers disbanded because of Pym's death, and Morgan le Fay is constantly threatening the small part of the world she hasn't conquered yet. He then travels back in time and prevents himself from killing Pym, but now makes Pym create a way to destroy Ultron when necessary.
* In the ''Series/StarTrekTheNextGeneration'' mini-series, ''The Last Generation'', the Federation has collapsed because the Khitomer Accords from ''Film/StarTrekVITheUndiscoveredCountry'' were never created as the Federation President was assassinated. After the last real bastion of the Federation discovers the android Data, who has realized this timeline is not the real one, they have to go back in time to make sure the Accords are created, stopping a MakeWrongWhatOnceWentRight plot in the process.
* In ''ComicBook/{{Seconds}}'', the red mushrooms give Katie this ability, which she starts to irresponsibly abuse [[spoiler:and ends up sending everything to hell]].
* In ''ComicBook/{{Lilith}}'', in the far future humanity has been banished from the surface of Earth by the Triacanto, a parasite that dwelled inside human bodies for millennia until, in the Great Germination, it emerged and took over the surface. To prevent this, the protagonist Lyca (who takes the name Lilith during her mission) is sent back in time to cut off any line of growth by extracting it from the various [[PatientZero Patients Zero]] before they can infect more people-and to hell to any alteration to history she has to do to reach her target (indeed, the ''only'' time she doesn't change history in some way is her first stint in UsefulNotes/WorldWarI, when anyone she kills would have died at that time anyway during the Battle of Caporetto). It is a recurring plot point that, whenever she travels to a point in time after one of her previous interventions, the history she finds is different from what it would have been, such as ''Literature/TheIliad'' narrating of Achilles' being blinded by Artemis (the result of Lilith, in her first mission, blinding the Achaian warrior that would inspire Achilles' character) or [[spoiler:the Aztecs defeating Cortes thanks to iron weapons and resistance to smallpox acquired from the Vikings (that had contacted them when Lilith enlisted Leif Erikson's help to chase down a bearer of the Triacanto, with Lilith telling them the American natives would pay ''a lot'' for those weapons)]].
* ''ComicBook/UltimateMarvel'':
** ''ComicBook/TheUltimates'': Red Skull big plan is to use the Cosmic Cube to go back in time to WWII and [[spoiler:prevent his father, Captain America, from being frozen in the arctic, so they can grow up like a normal family.]]
** ''ComicBook/UltimateXMen'': Apocalypse created a BadFuture, but Cable and Bishop go back in time and set up events to prevent his timeline from happening.
* In ''ComicBook/TheInfinite'', freedom fighter Bowen goes back in time to team up with his younger self to take down the brutal regime that took over his world before it can seize power.
* In ''ComicBook/TheLastWest'', Robert Whittenheimer is trying to figure out what went wrong with his grandfather's atom bomb, believing that it is the key to ending America's technological stagnation.
* Subverted in ''ComicBook/WayOfTheWorld''. When ComicBook/{{Supergirl}} gets a time-travelling device and feels tempted by the opportunity to fix all her mistakes. Upon reflection, though, she decides that the past is the past and she must accept this and move on.
-->'''Supergirl:''' I can go back. I can go back and give them the device before they die. They can still use it. They can still go back and be with him. Or I could go back. Go back even further. With enough time...maybe I could save him. Or even...I could save them all. Do it all over again. All my mistakes— So many mistakes. I could do it right this time. I would know everything. I would be perfect.
* ''ComicBook/SonicTheComic'' has a unique example of an ''antagonist'' fixing a wrong in the past to advance their agendas.[[spoiler:The Brotherhood of Metallix traveled back in time and prevented the FreakLabAccident that transformed kind veterinarian Ovi Kintobor into the evil Ivo Robotnik. As the doctor played an integral role aiding Sonic and the Freedom Fighters in opposing the faction, this created a BadFuture where the Brotherhood conquered Mobius and renamed it "Planet Metallix". Sonic then went back and SetWrongWhatWasOnceMadeRight, leaving us with the disturbing knowledge that the hero is responsible for unleashing a great evil in the series, even if it was to prevent a greater evil from taking place]].
[[/folder]]
[[Episode or Character Plots]]
* Rayek from ''ComicBook/ElfQuest'' travels to the ''future'' in an attempt to 'save' his space-travelling ancestors from being thrown back in time and crashing on the planet. Unfortunately, all their descendants currently living on this planet will then cease to exist -- and will never have existed, since their ancestors will never have set foot on the planet in the first place. Opinions about whether or not this is a good thing differ -- he thinks it's good, everyone else thinks it's bad. [[ItsAllAboutMe Who cares about other men's opinion anyway.]] He tried to compromise by having the people he actually knew and cared about stay inside the palace, which would protect them from the history-wiping effects... but since this would only save the people standing immediately in front of him, and still wipe out everyone else on the planet, they refused his offer. [[spoiler:When confronted with the choice between annihilating everyone he ever loved, and preventing ten thousand years of suffering, he ends up suffering a BSOD and losing his powers.]]
* In the "Camelot Falls" storyline in the ''ComicBook/{{Superman}}'' comics, a prophetic sorcerer tells him what he needs to do to avert the extinction of humanity years down the line. In a subversion of this trope, Superman refuses to comply, namely because "what he needs to do" involves not preventing the deaths of countless innocents.
* ''ComicBook/{{Supergirl}}'':
** Subverted in storyline ''[[ComicBook/Supergirl2005 Way of the World]]''. In the far future, Kara Zor-El has the chance to travel back to the past. She thinks of fixing all of her mistakes and doing it right this time... but then she thinks she'd be playing God like a time-travelling villain she just defeated. The past is the past and she must accept this and move on.
** In the third issue of ''ComicBook/SupergirlCosmicAdventuresInThe8thGrade'', Supergirl gains time-travelling powers and goes back in time to stop an asteroid from hitting her hometown.
* The mission of Samaritan in ''ComicBook/AstroCity''. He actually did set things right before the series started, but now his own time period has [[StrangerInAFamiliarLand changed beyond recognition]].
* ComicBook/{{Cable}} has apparently set as his ultimate goal to set right ''everything'' that went wrong, like preventing Comicbook/{{Apocalypse}} from waking up. (He then wakes up Apocalypse himself by accident. [[NiceJobBreakingItHero Good job]].)
* Archie's ''ComicBook/{{Sonic The Hedgehog|ArchieComics}}'' series:
** Silver's personal StoryArc is much the same as in ''VideoGame/SonicTheHedgehog2006'' -- he comes from a BadFuture where the world is all but destroyed, and is constantly traveling through time trying to find a way to undo it, with his only clue being that the betrayal of a member of the Freedom Fighters was somehow key to this disaster. Of course, like his game counterpart he's being advised by a (supposedly reformed) villain, but it wasn't until he decided to talk to the more informed denizens of the present that he figured out who his target was: [[spoiler:Sally Acorn, who had been captured and roboticized by Dr. Eggman and forced to fight her friends against her will.]] Silver did manage to subdue his target, but then the book went into its crossover with [[ComicBook/SonicTheHedgehogMegaManWorldsCollide Megaman]] and the whole thing became an AbortedArc when the series resumed after the crossover thanks to a ContinuityReboot.
** A StoryArc in the early 100's issues involved Knuckles' future daughter Lara-Su attempting to undo her own BadFuture by preventing her father's assassination. Unfortunately, when she got back to her time, she discovered that her mother had lied to her in order to protect her -- the truth was, Knuckles hadn't died, he'd pulled a FaceHeelTurn and was in fact responsible for the BadFuture they lived in. The bright side, however, is that the "present" Lara-Su had visited was the series' main timeline, while her future is an [[AlternateUniverse alternate one]]. So we don't have to worry about our Knuckles switching sides like that.
** The two story arcs intersected, with Silver helping Lara-Su defeat her crazed father. Silver wished Lara good luck as he left to continue his mission.
* In the ''Franchise/StarTrek'' "Time Crime" miniseries, someone screwed up the timeline so that Klingons aren't aggressive warmongers and the Romulan Empire doesn't exist. Despite the positive bits, Kirk and Spock still have to fix everything because the overall outcome would ultimately be a BadFuture. That and, as bad as Romulans are, they don't deserve to be ''erased from time''. In one Tearjerker moment, Kirk realizes that "fixing" the timeline will mean losing his son David (in the real timeline David was killed by Klingons), and he gives his son one final hug before embarking on his trip through time.
* A recurring plot in ''ComicBook/PaperinikNewAdventures''.
** The first time is when the [[PunchClockVillain Raider]] arrives in present-day Duckburg to prevent an experiment with nuclear fusion from [[AtomicHate blowing up half of the city]], and PK (WesternAnimation/DonaldDuck's superhero alter ego) has to help him fix thing and prevent the TimePolice from [[LawfulEvil stopping him]] while preventing the Raider from using the fixed experiment from charging his dimensional travel device and raid all dimensions (he ends up [[spoiler:discovering a flaw in the device that froze the Raider in all timelines at once until the TimePolice arrested him]] and slowing the TimePolice long enough for them to settle on ruining the experiment in a non-catastrophic way).
** The second time it's discovered that an experiment in the future [[GoneHorriblyWrong created a bubble that would destroy all the time]], and [[TheSyndicate The Organization]] gets Paperinik to free the Raider before sending them to stop the experiment.
*** It's implied that [[spoiler:the mess had been caused by The Organization sending an agent to prevent the experiment and the danger in first place, resulting in the experiment being anticipated and the agent ''causing the experiment to go awry in the attempt to stop it'']]. Being GenreSavvy, one of the leaders of The Organization conceived the plan seen in the story, that ultimately resulted in [[spoiler:Paperinik and the Raider getting the experiment anticipated a little more and cause it to go awry again, but arriving before the forming bubble in time to stop it]].
* In the ''ComicBook/{{Runaways}}'' arc "Dead-End Kids", the kids are ostensibly hired by the Kingpin to steal a device. When the Kingpin tries to collect the device from them, they flee, and in the ensuing flight, they activate the device, which ends up sending them back in time to 1907, where they meet a similar group of runaways, one of whom, Lillie Mc Gurty, hits it off with Victor. [[spoiler:It later turns out that the much-older Lillie Mc Gurty of 2007 was the person who hired them, through the Kingpin, to steal the device and then orchestrated the events that caused them to use it, because Victor was the love of her life and she thought if she could get him to travel back in time again, they'd spend the rest of their lives together. Unfortunately for her, her actions also resulted in a gang war that forced the Runaways to retreat back to their own time, and Lillie's younger self was to go with them.]]
* In the GrandFinale for ''ComicBook/SpiderGirl'', ''Spider-Girl:The End'', May's symbiote-created clone April does this when it turns out that May dying leads to an apocalyptic future where Carnage symbiotes ravage the world.
* The ''ComicBook/UncannyXMen'' storyline "The Last Will And Testament of Charles Xavier" turns into this. As one of Xavier's last wishes, he wants the X-Men to find and help train an Omega-level mutant he couldn't (mostly because he was ''way'' too powerful). ComicBook/{{Cyclops}} hunts him and down and attempts to help him alongside Illyana (who is borrowing a past version of ComicBook/DoctorStrange's Eye of Aggamotto) and Emma Frost, only for them to get killed when ComicBook/{{SHIELD}}. One of Cyclops' students decides to travel back in time and persuades a past version of Xavier to prevent this, who does so by [[spoiler:preventing the mutants parents from meeting, thus negating his birth.]] This also has the effect of removing the original beneficiary of who'd get the Xavier School from [[spoiler:Mystique]] to Cyclops.
* In ''[[ComicBook/{{Convergence}} Convergence #8]]'', [[spoiler:With the death of Deimos at the hands of Parallax, all the temporal energies of the time travellers that Deimos had absorbed were loose, and threatened to make the planet Telos into "the bullet that will destroy the multiverse". To fix this, survive and hopefully return to what he used to be, and to undo the destruction of the Convergence worlds, ComicBook/{{Brainiac}} tries to give the loosed temporal energies back to the survivors to restore their worlds. However, the ''ComicBook/CrisisOnInfiniteEarths'' event prevents him, so he has to send [[Franchise/TheFlash Barry Allen]] and the pre-Crisis [[ComicBook/{{Supergirl}} Kara Zor-El]] back to their deaths... then Parallax decides he wants to go, that he wants redemption and be a hero and ''Post-Crisis Franchise/{{Superman}}, ComicBook/LoisLane and their son join him''. The end result? ''Crisis on Infinite Earths is undone and the multiverse is restored in full.'']]
* ''ComicBook/AndersonPsiDivision'': When Anderson finds herself in a young woman's body on Deadworld before its destruction, she tries to prevent the rise of the Dark Judges by stopping Judge Death's transformation into an undead monster. [[spoiler:She fails completely after Death is tipped off by a mole within the resistance.]]
* One storyline in ''[[ComicBook/{{Shazam}} The Power of SHAZAM!]]'' had Silvana alter history, leading to Billy Batson's parents becoming Captain Marvel. However, when it's revealed that the alterations to this will hit throughout time, Billy's father opts to set things right by stopping Silvana from making the changes. However, Waverider decides to step in to make one teeny-tiny alteration -- he's able to set things up so that Billy's terrible childhood is undone and he stays with his sister ComicBook/{{Mary|Marvel}}.
* ''[[ComicBook/RobinSeries Robin]]'': Tim Drake received a message from an apparent BadFuture warning him that one of the members of the [[BadassFamily Batfamily]] had turned into a KnightTemplar tasking him with preventing the change from coming to pass. The whole thing turned out to be a [[spoiler:[[SecretTestOfCharacter test]] orchestrated by Batman, who wanted Tim to be prepared for such an eventuality. Tim was not amused, especially as he'd already had to deal with the lunatic knight templar replacment Bruce picked after ComicBook/{{Bane}} broke his back and temporarily [[TenMinuteRetirement quit being Robin]].]]
* ''ComicBook/TeenTitans'': Mirage originally arrived in the "current" timeline on a mission to kill [[ComicBook/WonderGirl Donna Troy]] to prevent the birth of a son who will become a horrific despot that Donna isn't even pregnant with yet.
* In ''ComicBook/{{Femforce}}'', Stormy Tempest is a SpacePolice officer who is sent back in time to the 21st century to prevent the corruption that is taking over planets in her time from ever beginning.
* This is what causes the ''ComicBook/{{Flashpoint}}'' event: [[spoiler:Barry Allen, wanting to fix the damage to his past that Professor Zoom/Reverse Flash caused, went back in time to save his mom, causing a SetWrongWhatOnceWentRight and creating the ''Flashpoint'' timeline. Once Zoom tells Barry what he did, he's able to go back in time to stop himself from pulling it off.]]
** Later on, this is how Barry defeats Zoom as well; [[spoiler: he chooses to SaveTheVillain and use the [[AppliedPhlebotinum Speed Force]] to erase Zoom's TemporalParadox powers, grounding him in reality and making it so that he never became a villain in the first place, allowing him to live a peaceful, happy life (far, ''far'' away from Barry).]]
[[/folder]]
[[foldercontrol]]
[[folder:Series Plots]]
* ''ComicBook/{{Exiles}}'' was supposedly pitched as ''Series/QuantumLeap'' or ''Series/{{Sliders}}'' with superheroes.
* ''ComicBook/BoosterGold'' does this quite a bit as the secret protector of the time line. It's when he has to set wrong what once went right or keep wrong what once went wrong that things get really morally complicated for him.
* In ''ComicBook/CivilWar'' storyline, the entire event was kicked off when Namorita, a member of the ComicBook/NewWarriors, fought a villain named Nitro whose ability was to explode. Said explosion killed hundreds, including Namorita herself. Because of this, Namorita's name was posthumously slandered with the rest of the ComicBook/NewWarriors, much to the chagrin of her ex-lover, Richard Ryder aka ComicBook/{{Nova}}, even though they'd been broken up for years at that point. In his eponymous series, Nova is plucked out of the timestream along with a Namorita who is obviously from an era not only before the Civil War incident, but while she and Ryder were still lovers. Later, when the cosmic forces that threw them together start to send them back where they belong, Nova (being a [[TheParagon Paragon-type]] character), refuses to let Namorita return to her own time (where she'll be doomed to repeat the same fate) and brings her to the present instead... consequences be damned.
* In an issue of ''Marvel Two-in-One'', the Thing goes back in time to cure his past self of being an orange-skinned monster and change his own life, but only succeeds in creating an alternate timeline where a now-human Ben Grimm quits the ComicBook/FantasticFour and is replaced by Spider-Man. This becomes MakeWrongWhatOnceWentRight in a follow-up story, when it is revealed that the absence of the Thing on the FF results in [[PlanetEater Galactus]] succeeding in his initial attempt to feed on the Earth, leaving the remnants of humanity with a CrapsackWorld low in vital resources.
* In ''ComicBook/HelOnEarth'', the main antagonist, [[WellIntentionedExtremist H'el]], wants to travel back in time to before his home planet Krypton [[EarthShatteringKaboom exploded]], and prevent its destruction. However, the energy needed for the time travel would destroy our entire solar system. Not that H'el [[FantasticRacism cares about our solar system]].
* In ''ComicBook/AgeOfUltron'', Wolverine decides to go back in time and kill Hank Pym, who created the robot Ultron which would annihilate humanity in the present. However, by killing Hank Pym, Wolverine creates a new dystopian timeline where the Avengers disbanded because of Pym's death, and Morgan le Fay is constantly threatening the small part of the world she hasn't conquered yet. He then travels back in time and prevents himself from killing Pym, but now makes Pym create a way to destroy Ultron when necessary.
* In the ''Series/StarTrekTheNextGeneration'' mini-series, ''The Last Generation'', the Federation has collapsed because the Khitomer Accords from ''Film/StarTrekVITheUndiscoveredCountry'' were never created as the Federation President was assassinated. After the last real bastion of the Federation discovers the android Data, who has realized this timeline is not the real one, they have to go back in time to make sure the Accords are created, stopping a MakeWrongWhatOnceWentRight plot in the process.
* In ''ComicBook/{{Seconds}}'', the red mushrooms give Katie this ability, which she starts to irresponsibly abuse [[spoiler:and ends up sending everything to hell]].
* In ''ComicBook/{{Lilith}}'', in the far future humanity has been banished from the surface of Earth by the Triacanto, a parasite that dwelled inside human bodies for millennia until, in the Great Germination, it emerged and took over the surface. To prevent this, the protagonist Lyca (who takes the name Lilith during her mission) is sent back in time to cut off any line of growth by extracting it from the various [[PatientZero Patients Zero]] before they can infect more people-and to hell to any alteration to history she has to do to reach her target (indeed, the ''only'' time she doesn't change history in some way is her first stint in UsefulNotes/WorldWarI, when anyone she kills would have died at that time anyway during the Battle of Caporetto). It is a recurring plot point that, whenever she travels to a point in time after one of her previous interventions, the history she finds is different from what it would have been, such as ''Literature/TheIliad'' narrating of Achilles' being blinded by Artemis (the result of Lilith, in her first mission, blinding the Achaian warrior that would inspire Achilles' character) or [[spoiler:the Aztecs defeating Cortes thanks to iron weapons and resistance to smallpox acquired from the Vikings (that had contacted them when Lilith enlisted Leif Erikson's help to chase down a bearer of the Triacanto, with Lilith telling them the American natives would pay ''a lot'' for those weapons)]].
* ''ComicBook/UltimateMarvel'':
** ''ComicBook/TheUltimates'': Red Skull big plan is to use the Cosmic Cube to go back in time to WWII and [[spoiler:prevent his father, Captain America, from being frozen in the arctic, so they can grow up like a normal family.]]
** ''ComicBook/UltimateXMen'': Apocalypse created a BadFuture, but Cable and Bishop go back in time and set up events to prevent his timeline from happening.
* In ''ComicBook/TheInfinite'', freedom fighter Bowen goes back in time to team up with his younger self to take down the brutal regime that took over his world before it can seize power.
* In ''ComicBook/TheLastWest'', Robert Whittenheimer is trying to figure out what went wrong with his grandfather's atom bomb, believing that it is the key to ending America's technological stagnation.
* Subverted in ''ComicBook/WayOfTheWorld''. When ComicBook/{{Supergirl}} gets a time-travelling device and feels tempted by the opportunity to fix all her mistakes. Upon reflection, though, she decides that the past is the past and she must accept this and move on.
-->'''Supergirl:''' I can go back. I can go back and give them the device before they die. They can still use it. They can still go back and be with him. Or I could go back. Go back even further. With enough time...maybe I could save him. Or even...I could save them all. Do it all over again. All my mistakes— So many mistakes. I could do it right this time. I would know everything. I would be perfect.
* ''ComicBook/SonicTheComic'' has a unique example of an ''antagonist'' fixing a wrong in the past to advance their agendas.[[spoiler:The Brotherhood of Metallix traveled back in time and prevented the FreakLabAccident that transformed kind veterinarian Ovi Kintobor into the evil Ivo Robotnik. As the doctor played an integral role aiding Sonic and the Freedom Fighters in opposing the faction, this created a BadFuture where the Brotherhood conquered Mobius and renamed it "Planet Metallix". Sonic then went back and SetWrongWhatWasOnceMadeRight, leaving us with the disturbing knowledge that the hero is responsible for unleashing a great evil in the series, even if it was to prevent a greater evil from taking place]].
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[[Episode or Character Plots]]
* Rayek from ''ComicBook/ElfQuest'' travels to the ''future'' in an attempt to 'save' his space-travelling ancestors from being thrown back in time and crashing on the planet. Unfortunately, all their descendants currently living on this planet will then cease to exist -- and will never have existed, since their ancestors will never have set foot on the planet in the first place. Opinions about whether or not this is a good thing differ -- he thinks it's good, everyone else thinks it's bad. [[ItsAllAboutMe Who cares about other men's opinion anyway.]] He tried to compromise by having the people he actually knew and cared about stay inside the palace, which would protect them from the history-wiping effects... but since this would only save the people standing immediately in front of him, and still wipe out everyone else on the planet, they refused his offer. [[spoiler:When confronted with the choice between annihilating everyone he ever loved, and preventing ten thousand years of suffering, he ends up suffering a BSOD and losing his powers.]]
* In the "Camelot Falls" storyline in the ''ComicBook/{{Superman}}'' comics, a prophetic sorcerer tells him what he needs to do to avert the extinction of humanity years down the line. In a subversion of this trope, Superman refuses to comply, namely because "what he needs to do" involves not preventing the deaths of countless innocents.
* ''ComicBook/{{Supergirl}}'':
** Subverted in storyline ''[[ComicBook/Supergirl2005 Way of the World]]''. In the far future, Kara Zor-El has the chance to travel back to the past. She thinks of fixing all of her mistakes and doing it right this time... but then she thinks she'd be playing God like a time-travelling villain she just defeated. The past is the past and she must accept this and move on.
** In the third issue of ''ComicBook/SupergirlCosmicAdventuresInThe8thGrade'', Supergirl gains time-travelling powers and goes back in time to stop an asteroid from hitting her hometown.
* The mission of Samaritan in ''ComicBook/AstroCity''. He actually did set things right before the series started, but now his own time period has [[StrangerInAFamiliarLand changed beyond recognition]].
* ComicBook/{{Cable}} has apparently set as his ultimate goal to set right ''everything'' that went wrong, like preventing Comicbook/{{Apocalypse}} from waking up. (He then wakes up Apocalypse himself by accident. [[NiceJobBreakingItHero Good job]].)
* Archie's ''ComicBook/{{Sonic The Hedgehog|ArchieComics}}'' series:
** Silver's personal StoryArc is much the same as in ''VideoGame/SonicTheHedgehog2006'' -- he comes from a BadFuture where the world is all but destroyed, and is constantly traveling through time trying to find a way to undo it, with his only clue being that the betrayal of a member of the Freedom Fighters was somehow key to this disaster. Of course, like his game counterpart he's being advised by a (supposedly reformed) villain, but it wasn't until he decided to talk to the more informed denizens of the present that he figured out who his target was: [[spoiler:Sally Acorn, who had been captured and roboticized by Dr. Eggman and forced to fight her friends against her will.]] Silver did manage to subdue his target, but then the book went into its crossover with [[ComicBook/SonicTheHedgehogMegaManWorldsCollide Megaman]] and the whole thing became an AbortedArc when the series resumed after the crossover thanks to a ContinuityReboot.
** A StoryArc in the early 100's issues involved Knuckles' future daughter Lara-Su attempting to undo her own BadFuture by preventing her father's assassination. Unfortunately, when she got back to her time, she discovered that her mother had lied to her in order to protect her -- the truth was, Knuckles hadn't died, he'd pulled a FaceHeelTurn and was in fact responsible for the BadFuture they lived in. The bright side, however, is that the "present" Lara-Su had visited was the series' main timeline, while her future is an [[AlternateUniverse alternate one]]. So we don't have to worry about our Knuckles switching sides like that.
** The two story arcs intersected, with Silver helping Lara-Su defeat her crazed father. Silver wished Lara good luck as he left to continue his mission.
* In the ''Franchise/StarTrek'' "Time Crime" miniseries, someone screwed up the timeline so that Klingons aren't aggressive warmongers and the Romulan Empire doesn't exist. Despite the positive bits, Kirk and Spock still have to fix everything because the overall outcome would ultimately be a BadFuture. That and, as bad as Romulans are, they don't deserve to be ''erased from time''. In one Tearjerker moment, Kirk realizes that "fixing" the timeline will mean losing his son David (in the real timeline David was killed by Klingons), and he gives his son one final hug before embarking on his trip through time.
* A recurring plot in ''ComicBook/PaperinikNewAdventures''.
** The first time is when the [[PunchClockVillain Raider]] arrives in present-day Duckburg to prevent an experiment with nuclear fusion from [[AtomicHate blowing up half of the city]], and PK (WesternAnimation/DonaldDuck's superhero alter ego) has to help him fix thing and prevent the TimePolice from [[LawfulEvil stopping him]] while preventing the Raider from using the fixed experiment from charging his dimensional travel device and raid all dimensions (he ends up [[spoiler:discovering a flaw in the device that froze the Raider in all timelines at once until the TimePolice arrested him]] and slowing the TimePolice long enough for them to settle on ruining the experiment in a non-catastrophic way).
** The second time it's discovered that an experiment in the future [[GoneHorriblyWrong created a bubble that would destroy all the time]], and [[TheSyndicate The Organization]] gets Paperinik to free the Raider before sending them to stop the experiment.
*** It's implied that [[spoiler:the mess had been caused by The Organization sending an agent to prevent the experiment and the danger in first place, resulting in the experiment being anticipated and the agent ''causing the experiment to go awry in the attempt to stop it'']]. Being GenreSavvy, one of the leaders of The Organization conceived the plan seen in the story, that ultimately resulted in [[spoiler:Paperinik and the Raider getting the experiment anticipated a little more and cause it to go awry again, but arriving before the forming bubble in time to stop it]].
* In the ''ComicBook/{{Runaways}}'' arc "Dead-End Kids", the kids are ostensibly hired by the Kingpin to steal a device. When the Kingpin tries to collect the device from them, they flee, and in the ensuing flight, they activate the device, which ends up sending them back in time to 1907, where they meet a similar group of runaways, one of whom, Lillie Mc Gurty, hits it off with Victor. [[spoiler:It later turns out that the much-older Lillie Mc Gurty of 2007 was the person who hired them, through the Kingpin, to steal the device and then orchestrated the events that caused them to use it, because Victor was the love of her life and she thought if she could get him to travel back in time again, they'd spend the rest of their lives together. Unfortunately for her, her actions also resulted in a gang war that forced the Runaways to retreat back to their own time, and Lillie's younger self was to go with them.]]
* In the GrandFinale for ''ComicBook/SpiderGirl'', ''Spider-Girl:The End'', May's symbiote-created clone April does this when it turns out that May dying leads to an apocalyptic future where Carnage symbiotes ravage the world.
* The ''ComicBook/UncannyXMen'' storyline "The Last Will And Testament of Charles Xavier" turns into this. As one of Xavier's last wishes, he wants the X-Men to find and help train an Omega-level mutant he couldn't (mostly because he was ''way'' too powerful). ComicBook/{{Cyclops}} hunts him and down and attempts to help him alongside Illyana (who is borrowing a past version of ComicBook/DoctorStrange's Eye of Aggamotto) and Emma Frost, only for them to get killed when ComicBook/{{SHIELD}}. One of Cyclops' students decides to travel back in time and persuades a past version of Xavier to prevent this, who does so by [[spoiler:preventing the mutants parents from meeting, thus negating his birth.]] This also has the effect of removing the original beneficiary of who'd get the Xavier School from [[spoiler:Mystique]] to Cyclops.
* In ''[[ComicBook/{{Convergence}} Convergence #8]]'', [[spoiler:With the death of Deimos at the hands of Parallax, all the temporal energies of the time travellers that Deimos had absorbed were loose, and threatened to make the planet Telos into "the bullet that will destroy the multiverse". To fix this, survive and hopefully return to what he used to be, and to undo the destruction of the Convergence worlds, ComicBook/{{Brainiac}} tries to give the loosed temporal energies back to the survivors to restore their worlds. However, the ''ComicBook/CrisisOnInfiniteEarths'' event prevents him, so he has to send [[Franchise/TheFlash Barry Allen]] and the pre-Crisis [[ComicBook/{{Supergirl}} Kara Zor-El]] back to their deaths... then Parallax decides he wants to go, that he wants redemption and be a hero and ''Post-Crisis Franchise/{{Superman}}, ComicBook/LoisLane and their son join him''. The end result? ''Crisis on Infinite Earths is undone and the multiverse is restored in full.'']]
* ''ComicBook/AndersonPsiDivision'': When Anderson finds herself in a young woman's body on Deadworld before its destruction, she tries to prevent the rise of the Dark Judges by stopping Judge Death's transformation into an undead monster. [[spoiler:She fails completely after Death is tipped off by a mole within the resistance.]]
* One storyline in ''[[ComicBook/{{Shazam}} The Power of SHAZAM!]]'' had Silvana alter history, leading to Billy Batson's parents becoming Captain Marvel. However, when it's revealed that the alterations to this will hit throughout time, Billy's father opts to set things right by stopping Silvana from making the changes. However, Waverider decides to step in to make one teeny-tiny alteration -- he's able to set things up so that Billy's terrible childhood is undone and he stays with his sister ComicBook/{{Mary|Marvel}}.
* ''[[ComicBook/RobinSeries Robin]]'': Tim Drake received a message from an apparent BadFuture warning him that one of the members of the [[BadassFamily Batfamily]] had turned into a KnightTemplar tasking him with preventing the change from coming to pass. The whole thing turned out to be a [[spoiler:[[SecretTestOfCharacter test]] orchestrated by Batman, who wanted Tim to be prepared for such an eventuality. Tim was not amused, especially as he'd already had to deal with the lunatic knight templar replacment Bruce picked after ComicBook/{{Bane}} broke his back and temporarily [[TenMinuteRetirement quit being Robin]].]]
* ''ComicBook/TeenTitans'': Mirage originally arrived in the "current" timeline on a mission to kill [[ComicBook/WonderGirl Donna Troy]] to prevent the birth of a son who will become a horrific despot that Donna isn't even pregnant with yet.
* In ''ComicBook/{{Femforce}}'', Stormy Tempest is a SpacePolice officer who is sent back in time to the 21st century to prevent the corruption that is taking over planets in her time from ever beginning.
* This is what causes the ''ComicBook/{{Flashpoint}}'' event: [[spoiler:Barry Allen, wanting to fix the damage to his past that Professor Zoom/Reverse Flash caused, went back in time to save his mom, causing a SetWrongWhatOnceWentRight and creating the ''Flashpoint'' timeline. Once Zoom tells Barry what he did, he's able to go back in time to stop himself from pulling it off.]]
** Later on, this is how Barry defeats Zoom as well; [[spoiler: he chooses to SaveTheVillain and use the [[AppliedPhlebotinum Speed Force]] to erase Zoom's TemporalParadox powers, grounding him in reality and making it so that he never became a villain in the first place, allowing him to live a peaceful, happy life (far, ''far'' away from Barry).]]
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