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"Weirdmageddon Part 1"[3] is the 18th episode of the second season of Gravity Falls and the thirty-eighth episode overall. It premiered on October 26, 2015.[1]

Official overview

Trapped in the apocalypse and menaced by villains new and old, Dipper finds himself in a race against time.[4]


The episode opens up right where the previous one left off, with Bill Cipher laughing at the gateway between the Nightmare Realm and Gravity Falls. His body gains flesh, metal, and pure energy as Bill finally obtains a physical form, becoming a triangle of light. Blendin Blandin sees the carnage above, and is helpless to watch as Mabel's unconscious body is lifted up and sealed in a pink bubble emblazoned with a shooting star. Chains wrap around the bubble, sealing Mabel inside. Blendin taps his wristwatch, informing the Time Paradox Avoidance Enforcement Squad of the situation before he teleports away.

The townspeople of Gravity Falls all look up to the sky in fear as Bill grows in size, becoming a rotating pyramid-like abomination with six arms and a pure black form with multicolored energy. Bill returns to his normal form and floats down to the town, announcing that he will be the lord and master of Gravity Falls for eternity. He then melts a statue of Nathaniel Northwest as the townspeople watch in despair. Bill then introduces the town to the other residents of the Nightmare Realm that Bill calls his friends, each more grotesque and anomalous than the last; 8 Ball, Kryptos, Xanthar, Teeth, Keyhole, Hectorgon, Amorphous Shape, Pyronica, Pacifier, and a large army of Eye-Bats Bill calls "these guys." The townspeople don't react kindly to the display, urging Bill and his friends to get out of town. Preston Northwest offers to join Bill and become one of his "horsemen of the apocalypse," but Bill switches all the body parts on Preston's face instead, laughing as the crowd runs away in horror. Bill promptly unleashes the winged eyeballs and madness bubbles all over town. The eyeballs petrify and abduct the townspeople, and the bubbles instill madness in everything they touch. Bill also summons a gargantuan black pyramid from the ground to serve as his castle, and animates the Gravity Falls water tower. After proclaiming that time is dead and meaning has no meaning, Bill welcomes everyone to Weirdmageddon.

Meanwhile, Dipper and Ford watch the carnage from the Mystery Shack. A massive group of animals, including the gnomes and a Manotaur, stampede out of the forests and away from Bill, knocking Dipper over. Ford picks Dipper back up, telling him that with every passing minute, Bill's dimension leaks into theirs and his power grows. Dipper thinks that the interdimensional rift must have cracked in his backpack when Mabel carried it, putting her in danger. He runs off to go find her, trying to contact her through their walkie-talkies. Ford stops Dipper and tells him that before they can find Mabel, they must defeat Bill. Their best shot is to knock him back into the rift from where he came before Weirdmageddon spreads across the entire world. Ford isn't sure it's possible, but says he has to try. Dipper and Ford abruptly stop when a gnome announces that a "weirdness wave" is headed their way. They rush inside the Shack as a giant pink tsunami washes over the entire town. The weirdness wave spawns a tentacle in Soos' backyard, makes his grill turn into a monster, and it turns Abuelita into a chair. Soos is shocked, but Abuelita tells Soos to go help the others around town. Soos follows her order and heads off. At the Shack, Stan is telling off Gompers for chewing on his fez's tassel. The weirdness wave causes Gompers to grow to an immense size, and Stan runs away with Gompers in pursuit. Next, the wave washes over the arcade, bringing Rumble McSkirmish and other arcade characters to life.

Meanwhile, in the Gravity Falls Maximum Security Prison, Lil' Gideon and the other inmates have made finger-paintings to share with each other. After the counselor in charge of the event accuses Gideon's Mabel-centric art of being abnormal, the other inmates rally to Gideon's cause and back him up. They chant Gideon's name until Gompers chews through the prison walls, creating an escape route. After seeing the mayhem and madness going on across town, Gideon comments on how "Bill came through." Bill and his friends gather around the center of town, ready to cause more havoc. Dipper and Ford have followed them, hiding at the top of the Gravity Falls church. Ford has brought a black suitcase labelled "EXPERIMENT 618" with him. Inside is a quantum destabilizer, a powerful gun that will have the ability to knock Bill back through the rift and shut down Weirdmageddon - that is, if he can aim the gun correctly. With the gun only armed for one attack, Ford locks Bill in his sights. However, the weirdness wave causes the bell in the church to animate itself, ringing of its own accord and causing Ford to miss the shot. It fires through Bill's top hat, sailing into a tree. Bill instantly repairs the damage done to his hat and spots Dipper and Ford, firing a laser right through the church tower that obliterates it instantly. The two survive, but are badly injured. Ford, pinned under rubble, tosses Dipper a bag with the three journals inside. Ford begins to tell Dipper that there's another way to defeat Bill, but he is cut short when Bill appears, towering over Ford. Dipper manages to hide before Bill can spot him.

Bill captures Ford and presents him to his friends, telling them that Weirdmageddon wouldn't be possible without Ford. Bill makes an offer with Ford and tells him it's not too late to join Bill's side. Ford says he'd rather die, so Bill turns him into a golden statue to use as a back-scratcher. Dipper, who has gone back onto the city street, yells that he's had enough. Bill flies over to Dipper, asking him what he could possibly do to defeat Bill in one shot. Dipper flips through Journal 3, trying to find Bill's weakness. With no answers, Dipper panics and leaps towards Bill, trying to punch him. In response, Bill knocks Dipper backwards, causing him to fly into a tree. Bill then telekinetically seizes the three journals, burning them in front of Dipper. After Bill shows Dipper the statue of Ford, saying that this is what happens to heroes in his world, Bill tells 8-Ball and Teeth that they can eat Dipper for a snack. Bill then converts a random car into a sleek getaway ride for his other friends. The car flies away to Bill's pyramid-castle (which he calls the Fearymid), leaving Dipper, 8-Ball, and Teeth behind. The two beasts chase Dipper into the forest as what's left of the journals blows away in the wind.

Three days into Weirdmageddon, Gravity Falls has become a complete wasteland. Shandra Jimenez reports the weather as the winged eyeballs petrify more and more townspeople. Dipper evades the eyeballs, calling Mabel via walkie-talkie. He talks to her about how he hasn't found her or Stan, and isn't even sure she can hear him. Dipper decides to go to the mall, wondering if there are other survivors there. On the way, he runs into The Horrifying Sweaty One-Armed Monstrosity, who wants Dipper to "get into his mouth." As Dipper tries to open the mall's locked doors and the Monstrosity gains on him, its hand pushes Dipper through the doors.

As Dipper wanders around the mall looking for his family, he finds a tray of nachos in the food court. As he moves to pick them up, he triggers a trap and is caught in a net. Wendy reveals herself from inside a potted plant to examine her trap, but is surprised to see Dipper. She frees him from the net and tells Dipper how she's been trained yearly to handle apocalyptic scenarios such as this. Dipper and Wendy hug, happy they have each other. Wendy also reveals she ran into Toby Determined earlier, who joins their group. They then escape to Wendy's secret hideout. Wendy tells Dipper that Robbie, Lee, Nate, Tambry, and Thompson were all petrified before she found Dipper. Dipper explains Ford's apprenticeship offer and his fight with Mabel to Wendy, who then invites him onto the rooftop of their hideout. As they survey the weirdness around them, Dipper mournfully tells Wendy they lost the battle against Bill. Wendy gives him a pep talk, saying it's not over yet and that he needs to get Mabel back if he wants to defeat Bill. She tells Dipper that when him and Mabel are together, there's nothing they can't do. Dipper realizes she's right, but he still doesn't know where Mabel's bubble is. Suddenly, a billboard blocking the view is eaten by a monster, which reveals Mabel's location: right near the Floating Cliffs. Wendy comes up with a plan to get to Mabel's bubble.

Meanwhile, Bill and his friends are having a rave party inside the Fearymid. They're playing party games with the statues of the Gravity Falls citizens. Bill tells his friends that once the party is over, he'll unveil Phase 2 of Weirdmageddon. Suddenly, the Time Police, Blendin, and Time Baby barge in, crashing the party. Lolph, Blendin, and Time Baby accuse Bill of possessing Blendin and almost destroying reality. Bill vaporizes the Time Police and Time Baby instantly, and the party resumes. Blendin escapes unharmed and teleports away. 8-Ball and Teeth approach Bill, worried that Dipper might foil their plans. Bill says he's not worried, and that he has "someone on the case." Dipper and Wendy break into the abandoned auto mart, planning to hotwire a car and use it to get to Mabel. Toby tries to steal an air freshener, but is knocked unconscious by tranquilizer darts. Dipper and Wendy are accosted by the Discount Auto Mart Warriors, a group of escaped inmates led by Gideon himself. Dipper tries to explain that they just want one car, but Gideon interrupts, telling them that Bill himself has ordered Dipper and Wendy to be put under arrest.

Gideon explains that Bill has appointed him as the master of the wastelands so that he could watch over Mabel's bubble. He also shows that he has a key that can unlock her bubble. Gideon is ecstatic over his new job, and he still believes that Mabel is destined to be his. Gideon then tells Ghost-Eyes to bring Dipper and Wendy to Bill. Before he does so, Wendy attacks Ghost-Eyes and steals the key from Gideon. She then dropkicks Gideon into a crowd of Warriors and drives off with Dipper. The Warriors take Gideon and start following them. Wendy tells Dipper that she doesn't have a license while she swerves around the Monstrosity. Gideon's henchmen aren't so lucky, and the Monstrosity manages to eat a car. Ghost-Eyes and Gideon escape as Ghost-Eyes questions why Gideon is keeping Mabel in her bubble. Dipper and Wendy notice a group of weirdness bubbles up ahead, which they have no choice but to drive through. Their animation styles change drastically in each bubble they go through, ranging to becoming birds to anime to live-action. Gideon and his henchmen travel through the bubbles as well, still in pursuit.

Eventually, the two parties are neck-and-neck. Gideon begins to crash his car into Dipper and Wendy's. Dipper realizes that they are close to Mabel's bubble, but have to make a gigantic jump across a canyon. Wendy manages to avoid Gideon's attack and drive the car across the canyon. However, the car crashes and rolls across the ground, heavily injuring Dipper and Wendy. Dipper crawls out of the car, but bumps into a mysterious hooded figure that reveals themselves to be Soos. Soos tells Dipper and Wendy how he's been wandering across the plains and helping strangers in need. He also reveals that Gideon and his henchmen have surrounded Dipper and Wendy. Gideon then summons an army of Bill's winged eyeballs to attack Dipper and his friends, proclaiming that Mabel is his. Dipper then tells Gideon that Mabel doesn't love him, and never did. He continues to say that Gideon can't force Mabel to love him, but he can try to become someone worthy of loving.

He tells Gideon that if he stands up to Bill and lets Dipper free Mabel, that would make him a better person and would make him better in Mabel's eyes. Gideon decides to help Dipper, but says that he has to tell Mabel that Gideon helped set her free. Dipper accepts, and Gideon and his henchmen drive away to fight Bill's eyeball army. Dipper, Wendy, and Soos make it to Mabel's bubble and unlock it with the key. Dipper warns his friends that they have no way of knowing what dangers Bill has put inside, but they know they have to do it for Mabel. They walk inside the unlocked bubble as the background fades to white, with "To be continued" written on the screen.

In the end credits, the monstrosity is attempting to get people into his mouth, but his actions end in failure. He resigns himself to a fate of starvation, crawling offscreen to call his mother.


Production notes

See also: List of allusions and List of goofs.

Character revelations

  • Soos now has folk songs written about him by the people he had helped throughout the episode.
  • Wendy had always wanted to drive a tank, and had failed her driving exam.
  • Dipper and Mabel have allergies that go off at the same time.
  • Ghost-Eyes majored in philosophy.
  • The Corduroys train for the end times instead of celebrating Christmas.
  • Toby Determined doesn't smell like a person and can take over a dozen knock-out darts

Series continuity


  • Bill Cipher's page from the opening theme is seen with a hole where Bill's picture should be, nodding to the fact that he has finally entered Gravity Falls' dimension.
  • At the end of the opening theme, a faint whisper can be heard that is different from the ones heard throughout the show. When the theme is reversed, Bill can be heard saying "I'M WATCHING YOU NERDS."
  • A remixed, apocalyptic version of the theme song is used for this episode where Bill and his minions replace the main characters in every shot.
  • 618 appears on the truck driven by Ghost-Eyes and Gideon.
  • The box that contains Ford's quantum destabilizer is labeled "EXPERIMENT 618."
  • The weirdness bubbles that Dipper and Wendy go through turn them into birds, anime, food, and live-action versions of themselves. The weirdness bubbles Gideon and Ghost-Eyes go through turn them into polygonal, female, and silent film versions of themselves.
  • In an interview with Disney Insider, Alex Hirsch confirmed that Jason Ritter and Linda Cardellini also portrayed the live-action versions of Dipper and Wendy.[5]
  • At the end of the opening theme for this episode, where it would usually say "Created by Alex Hirsch", it now says "Created by Bill Cipher".


  • The cryptogram in the episode's end page reads, "17-23-11-19 15-5 9-2-19-6, 23-10-20 15 1-9-10. 10-9-1 15-4'5 4-15-11-19 4-9 5-4-23-6-4 4-16-19 18-3-10. 15  23-12-1-23-25-5 12-9-2-19 21-9-6-6-3-8-4-15-10-17 12-15-2-19-5. 10-9-1 12-19-4'5 5-19-19 1-16-15-21-16 8-15-10-19-5 5-3-6-2-15-2-19-5." Once decoded using the combined cipher it reads, "GAME IS OVER, AND I WON. NOW IT'S TIME TO START THE FUN. I ALWAYS LOVE CORRUPTING LIVES. NOW LET'S SEE WHICH PINES SURVIVES.
  • The title card flickers from "Gravity Falls" to "JUDYLWB IDOOV," which, when translated with the Caesar cipher, says, "GRAVITY FALLS."
    • This also appears in the Water Tower in a short second where the screen turns static.


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  1. 1.0 1.1 Hirsch, Alex (October 19, 2015). Tweet Number 656318186741043200. Retrieved on October 20, 2015.
  2. Mitch Metcalf (October 26, 2015). SHOWBUZZDAILY’s Top 100 Monday Cable Originals & Network Update: 10.26.2015. Retrieved on October 27, 2015.
  3. Serrao, Nivea (October 23, 2015). Weirdmageddon Is Here! Gravity Falls' Alex Hirsch on What to Expect. TVINSIDER. Retrieved on October 23, 2015. “...That, of course, creates friction with Dipper, which is where we leave off when we enter 'Weirdmageddon Part 1.'”
  5. Disney Insider (October 27, 2015). Exclusive: Gravity Falls Creator Alex Hirsch on Weirdmageddon, Part 1. Disney Insider. Disney Blogs. Retrieved on October 28, 2015.

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