Three unlikely best friends + a set of crazy twins + a very mysterious town = Extreme insanity. Yes, that is indeed true when Joe, Alyssa, and Arielle are shipped off to Gravity Falls for the summer as punishment. But their encounters with twins Dipper and Mabel and the very weird going-ons in this town may change their opinion that this summer is going to be quite boring.
(Alex Hirsch owns Gravity Falls; I only own my OCs and their parents. The episodes used in this story all go to Alex. None is mine. The image is also not mine.)