It's been five years since Bill. Five years since the apocalypse. Five years since Gravity Falls had almost become weirdmageddon. Everyone had tried to move on and act like nothing had ever happened, but for the Pines family it had all felt too real. A year ago, Stan and Ford had decided to end their travels and settle back down in the Mystery Shack, deciding the mysteries in Gravity Falls were enough to occupy them for a bit. The twins are finally back, returning every summer as they do, but this time something is different. This time there's you, and maybe that's what makes this summer different. Where there's you, there's a chance for Bill to come back. If only you'd known.