Previously on Gravity Falls:
Gideon has summoned a dangerous mind demon by the name of Bill Cipher to aid him in stealing the Mystery Shack from the Pines family. After traveling into Grunkle Stan’s mind and defeating Bill, Dipper Mabel and Soos wake up to find Gideon has already stolen the deed to the Shack and put his nefarious plans for the Pines and the town into motion.
Dipper wakes up from a terrible nightmare where everything I previously described happened and he, Mabel and Stan were forced to take shelter at Soos’ grandma’s house.
Unable to sleep, Grunkle Stan turns on the TV, which happens to be in the middle of a news story covering Gideon’s sudden ownership of the Mystery Shack and his plans for it. Gideon invites the whole town to hear his big announcement and promises free admission to anyone who wears his special Lil’ Gideon pins. Dipper is determined to set things right as is Mabel, especially if it means finally putting her grappling hook to good use.
Everyone in Gravity Falls comes to the Mystery Shack to marvel over Gideon and how his psychic abilities showed him some of the citizens’ biggest secrets. Soos, Stan, Dipper and Mabel also show up in disguise to hear the news. Gideon announces he’s turning the Mystery Shack into a theme park, Gideonland, and its mascot will be Waddles forced to wear a Gideon costume and wig. That is the last straw for the Pines. They storm the stage and declare that Gideon is a fraud and a thief. Gideon tells them that Stan gave him the deed, which he keeps on his person at all times and didn’t even bother to remove Stan’s signature from, and since the town follows the “finders keepers” rule that most movies and The Adventures of Ichabod and Mr. Toad seem to have regarding property rights there’s nothing the Pines can do apparently. Gideon sics security and a Lil’ Gideon pin on Stan and boots them out.
Now the Pines are out of a home and Soos and Wendy are out of a job. Since Soos’ grandma can’t afford to keep the Pines under her roof for more than a few days, Dipper and Mabel have to think of something quick. Stan can only BS to their parents about their situation for so long before he has to send them home. Though it’s short, the scene where he lies over the phone in private while worrying about how he can take care of the kids with barely any money to his name is heartbreaking. It’s not much better for Wendy either as she informs a heartbroken Dipper that her father will be sending her to work at her cousin’s logging camp for the rest of the summer if the Shack doesn’t reopen. The upside is that it will get her away from Robbie until he finally gets over their breakup.
At the Shack, Gideon is torturing poor Waddles in between poring over his Journal. When his father asks why he’s so busy reading instead of celebrating over Gideonland, Gideon tells him –