For almost a full season, the plucky folks who
help those in need have defeated
Monster of the Week after
Monster of the Week, protected the space-time continuum from invading aliens, stopped an anti-matter explosion from removing North America from the face of the planet, and saved the President.
Now, however, they are vexed by someone who seems to know their strengths, their weaknesses, and everything in between. They're outmaneuvered, outnumbered, and outsmarted. The season ends with the villain gloating over them, saying their most dangerous tasks up to that point have simply been tests he has engineered.
The Arc Welder cometh.
Arc Welding is a retroactive form of
Continuity Creep that occurs when a series which has heretofore been episodic
retcons itself so that it's all linked in a
Story Arc. The most common approach to arc welding is probably when one antagonist, hidden up to that point, is responsible for all the major threats the protagonists have faced thus far.
Alternatively, several arcs might be revealed to part of a larger
Myth Arc. This is rarer, possibly because it's harder to do well and shows that would benefit from it might not last long enough to play out the
retcon.
Arc welding is different from
Story Arc or
Myth Arc because it is always retroactive. Series that start out with a
Story Arc or
Myth Arc already in place generally aren't welded. If something were already part of an arc, it wouldn't need welding.
The creators may be simply putting unrelated crap together for the sake of using up the budget now that they're renewed. It can be also be a stroke of brilliance, the creators now realizing an underlying theme of their work on the series thus far. Lastly,
Arc Welding itself can be plotted from the beginning, as
The Reveal.
A lesser, and less likely to suck, version of
The Moorcock Effect. See also
Meta Origin.
Examples
Anime and Manga
- A minor Naruto example: A Filler episode revealed that Mizuki attempted to steal the scroll of kinjutsu on Orochimaru's orders. This revelation occurred around episode 160 or so, and Mizuki stole the scoll in episode 1.
- In Inu Yasha, everything bad the characters went through is proven to be one person's work entirely. Though since this came as early as the seventeenth episode it might have been pre-planned.
- In Bleach, a large number of seemingly incidental minor villains and events which occured throughout the series are revealed to have been caused by the Big Bad in season 3.
- In Sailor Moon DIC tried to do this to all the bad guys that appeared during the second season. Then later the original creator did this with the bad guy Chaos at the end of the series who was supposedly responsible for the appearance of all the previous Big Bads
- Tenjho Tenge did it something crazy. Every bad thing that ever happened to anyone turned out to be the work of the protagonist's dad. Even the stuff that happened hundreds of years ago.
Comic Books
- Cerebus did this a lot. There were very few minor, throwaway characters. Just about anyone who talked to Cerebus at some point is revealed to be important to the plot somehow.
- The comic Transmetropolitan starts its Myth Arc with issue #13 (the Year of the Bastard storyline), but starts Arc Welding sometime around issue #30. Though it takes a while, events from the first issue are eventually revealed to have had an impact all the way to the last.
- One of the highest quality examples of this is Don Rosa's Life and Times of Scrooge McDuck series, which takes every random reference Carl Barks ever made to Scrooge's past and puts together a comprehensive, sensical and engaging character biography. If the Eisner award is to be believed, it really worked.
- Geoff Johns has been doing this in the Green Lantern books, introducing an "emotional spectrum" that people can draw power from. The Green Lantern Corps fall square in the middle at green willpower; with red rage, orange avarice and yellow fear on one side and blue hope, indigo compassion, and violet love on the other. Not only are existing characters being tied into the spectrum (villainess Star Sapphire tapping into love energy, for example), but Johns is starting to establish whole rival corps for each (like yellow ring-wielder Sinestro starting his own Sinestro Corps of fear).
Literature
- Literary example: When Isaac Asimov returned to writing fiction, he welded together the Foundation universe and the Robots and eventually turned R. Daneel into the real mastermind behind all of the history between the two time frames.
Live Action TV
- One of the more explicitly identified examples of Arc Welding comes from Angel's fourth season, where Skip notes that everything that's happened to Angel and company for a very long time — Angel's ensouling, Cordelia's ascension, Fred's being trapped in Pylea, Lorne's banishment from Pylea — were all part of a master plan.
- A smaller version then happened in the next and final season: faced with Executive Meddling to be more episodic without any arcs, after finding out the show would be cancelled anyway Joss spent the last two episodes revealing that many of the villains over the season were part of a group called the Circle of the Black Thorn, then having the heroes kill them all.
- Star Trek: Deep Space Nine does excellent examples of Story Arcs and also of Arc Welding. Starting in mid-season 2 and possibly earlier, the seeds are lain in an almost offhanded manner for the coming storyline. Then, at the end of season 2, it's all revealed to be part of a big plot that isn't concluded until the final episode of the final season — which itself is the finale of a 9-part arc within the Myth Arc of the show.
- Also, Executive Meddling resulted in the Klingons returning to their Kirk-era level of villainy just as the Dominion was planned to take center stage. The Powers That Be did the best they could, and made it fit at the end by making Changeling manipulation responsible.
- The X Files did this in later seasons, with dormant alien DNA supposedly accounting for much of the apparently Earthbound paranormal activity Mulder and Scully investigated.
- Arc Patching, if not Arc Welding, was done in Veronica Mars, when the season 2 bus bombing storyline wrapped up. The perpetrator was revealed to also have raped Veronica at Shelly Pomroy's party, a storyline thought to be wrapped up in season 1 as being not rape, but mutually drugged-up semi-consensual sex. This explained Veronica's chlamydia, despite her having only two (or, as The Reveal made plain, actually three) sexual partners and presumably using protection, the existence of which was used to paint Veronica as a slut and therefore untrustworthy in the trial of Aaron Echolls. The blatant illegality of delving into her medical records for some reason not resulting in a mistrial is another debate entirely.
- Stargate, with the Ori plot continuing for two seasons after it was meant to be cancelled with a big chunk of Neglectful Precursor plot shoved in for good measure.
- At the end of the first season of The Sopranos, Big Pussy has vanished. No one knows anything. The writers of the show were just going to let it go at that—people do, indeed, vanish with no explanation, though it's rare. However, when they heard how the fans were wondering what happened to him, they welded Pussy into the story of Jimmy's being The Mole, with him being a second one.
Video Games
- The first 3 Metal Gear games were mostly self-contained. Metal Gear Solid 2 introduced The Patriots, whose operatives Revolver Ocelot and George Sears were largely responsible for the events of Solid. Metal Gear Solid 3 introduced their precursor organization, The Philosophers, who were largely responsible for Big Boss' decision to betray his country, becoming the villain for the first two Metal Gear games.
- In Guild Wars Nightfall, it's revealed that servants of Abaddon were responsible for driving the Charr into human lands in Tyria, leading to all the major background events of the Prophecies campaign; another servant led to the downfall of Shiro Tagachi, the Big Bad of Factions.
Western Animation
- Interviews with the creative team behind Justice League Unlimited reveal that they were several episodes into production before they realized that they were working toward what became of the "Cadmus Arc" — even though the final product appears seamless, with throw-away lines being Arc Welded into major clues. In particular, the penultimate episode's Big Reveal that Brainiac was possessing Luthor and influencing his actions was a last-minute decision, Arc Welding story elements that dated back to the previous Superman series.
- Similarly, the creators of the animated Teen Titans series waited until nearly the end of the first season to reveal the Big Bad Slade's master plan (turning Robin into his
catamite apprentice) because it took them that long to figure it out themselves.
- Parodied in Clone High's final episode, where the Shadowy Board of Directors bring together literally every one-shot guest character or celebrity and address them as collaborators. Of course, this was mostly just so the episode could end with literally every character ever to appear on the show - except Scudworth - frozen inside a meat locker.
- Most of the middle part of Gargoyles season 2 was already An Arc, but then, during the two-part season finale, where you see Oberon's Children filing into his castle to be recognized by him back on Avalon—and you realize they're familiar to you. Odin, Anansi, Banshee, Coyote, even Anubis are all his subjects. How powerful, then, must Oberon be? This was already a Story Arc of sorts—though Angela's, Goliath's, and Elisa's adventures were episodic, they were already linked by their method of travel—but now you see it was all part of a second arc as well, to set up the season 2 finale.
- Oban Star-Racers: In the last episode, Canaletto gives Eva/Molly a Hannibal Lecture where he tells her that he's been causing every Contrived Coincidence in her life that lead to her winning the ultimate prize, but turning down the position of Avatar so he can be freed..
