When Dipper and Mabel discover evidence that the reported town founder is a hoax, they set out to expose the historical cover-up and prove that Mabel's silliness is not a bad thing.
When Dipper and Mabel discover evidence that the reported town founder is a hoax, they set out to expose the historical cover-up and prove that Mabel's silliness is not a bad thing.
Guest Cast

Keith Ferguson
voices Deputy DurlandCast Appearances

Alex Hirsch
voices Grunkle Stan
Jason Ritter
voices Dipper Pines
Kristen Schaal
voices Mabel Pines
Alex Hirsch
voices Quentin Trembley
Alex Hirsch
voices Old Man McGucketEpisode Discussion
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