Dipper and Mabel vs. the Future

"" is the 17th episode in the second season of Gravity Falls, and the thirty-seventh overall. It is set to premiere October 12, 2015.

Official overview
Mabel decides to plan for her and Dipper's 13th birthday party. Meanwhile, Dipper ventures below the town to find its most shocking secret.

Synopsis
TBA.

Credits

 * Written by:
 * Alex Hirsch
 * Matt Chapman
 * Josh Weinstein


 * Directed by:


 * Storyboarded by:
 * Dana Terrace


 * With the Voice Talents of
 * Kristen Schaal as Mabel
 * Jason Ritter as Dipper
 * Alex Hirsch as Grunkle Stan, Soos, and Bill Cipher
 * Justin Roiland as Blendin Blandin
 * Linda Cardellini as Wendy
 * J.K. Simmons as Ford
 * Niki Yang as Candy
 * Carl Faruolo as Grenda


 * Casting by:
 * Sara Jane Sherman

Character revelations

 * When they were younger, Mabel used to glue googly eyes to her chin and talk as Mr. Upside-downington, but she hasn't done that since third grade (4 years ago).

Series continuity

 * Grenda's pet iguana, which first appears in "Double Dipper," makes an appearance.
 * On Mabel's miniature Mystery Shack there is a banner that reads, "Sev'ral Timez."
 * Mabel's scrapbook of "Summer Memories," which is first seen in "Dipper vs. Manliness" and later shown in "Society of the Blind Eye," makes an appearance.
 * Tyler Cutebiker is shown as Gravity Falls' mayor after winning the election in "The Stanchurian Candidate."
 * Stan's fishing hat that he made for Mabel from "The Legend of the Gobblewonker," can be seen on Mabel's bedpost.
 * Grenda is still dating Marius.
 * Bill Cipher returns, this time bringing the end of the World to Gravity Falls.

Trivia

 * The cold opening was shown during the Gravity Falls Revealed panel at NYCC.

Cryptograms
TBA.