years after weirdmageddon,Dipper and Mable are now 18 and graduated Highschool as they went back to California after their stay in gravity falls when they were 14,Dipper now has his own YouTube channel on conspiracy’s and mysteries with a lot of subscribers and followers he wants to be an author or ghost hunter after collage. He decides to go back to the place that started it all for him,gravity falls, he hasn’t visited since he was 14 and now he’s 18.