Dreamscaperers

"Dreamscaperers" is the nineteenth and penultimate episode of the first season of the American animated seriesGravity Falls. The episode is the first of the two-part season finale of the season (the second being "Gideon Rises"). It originally aired on the Disney Channel on July 12, 2013, and was written by series creator Alex Hirsch, alongside Matt Chapman and Tim McKeon, and directed by Joe Pitt and John Aoshima. The episode marks the first appearance of Bill Cipher, the series' main antagonist.

The series follows twins Dipper and Mabel, who live with their grand uncle, Grunkle Stan in a tourist trap called the Mystery Shack in the fictional town of Gravity Falls, Oregon. In this episode, Stan's nemesis Gideon (Thurop Van Orman) tries to steal the deed to the Mystery Shack from Stan's safe. When thrown out again, Gideon summons a demon called Bill Cipher (Hirsch) and asks him to invade Stan's mind and steal the combination to the safe. Dipper (Jason Ritter) along with Mabel (Kristen Schaal) and their friend Soos also venture into Stan's mind to prevent Bill from finding the combination.

The episode was watched by 2.7 million viewers in its original American broadcast on the Disney Channel, and received positive reviews from television critics.