Mabel finds a new boyfriend, whom Dipper suspects to be a zombie. The "zombie" turns out to be a bunch of gnomes, who hold her hostage in the forest and nearly ræp her.
2. The Legend of the Gobblewonker
The twins, accompanied by Soos, spend all day trying to snap a picture of a sea monster in order to win $1000 bucks. Shit hits the fan when it's revealed that the "sea monster" is a huge robot being controlled by a fucking redneck.
3. Headhunters
Mabel sculpts a wax replica of her Great Pedo Grunkle Stan. Said wax sculpture pisses off the other living "wax-people" in the Mystery Shack, so they decide to behead it. Dipper and Mabel lose their shit and launch an investigation into the "murder", discovering the alive wax-people and getting into a lame-ass fight with them.
4. The Hand That Rocks the Mabel
Mabel falls victim to another psychotic boyfriend, this time; a wealthy, autisticsick fuck named Li'l Gideon (of course, he HAD to be voiced by that pedo Thurop Van Orman, the same bastard who voiced Flapjack). Gideon forces Mabel to participate in activities she is not comfortable with, insisting that she become "a permanent soulmate". When Dipper intervenes, Gideon becomes a Sith Lord and uses the dark side of the force to try and kill him, but of course, he gets his ass handed to him and emoquits like a pussy, swearing ultimate retribution on the twins.
5. The Inconveniencing
Dipper lies about his age so he can get a chance to fuck hang out with Wendy and the Kewl Kidz. At dusk, everyone explores an abandoned 7-11 store, which is haunted by the shopowner's souls who happen to hate black teenagers and rap music. Dipper saves his friends by cosplaying as a lamb and doing a retarded dance almost comparable to anything Chris Chan would do for his own entertainment.
Soos realizes that girls don't like him so he becomes a Basement Dweller and dates an anime girl on a dating sim who turns out to be a l33t haxxor. The l33t haxxor terrorizes Soos with the cringe of the FNAF fandom until he melts the dating sim and kills her.
Grunkle Stan snatches a version of Rick who's his brother back from the Nightmare Realm.
12. A Tale of Two Stans
13. Dungeons, Dungeons, and More Dungeons
14. The Stanchurian Candidate
15. The Last Mabelcorn
16. Roadside Attraction
Filler.
17. Dipper and Mabel vs the Future
Mabel has a mental breakdown about having to grow up like everyone else. Bill Cipher exploits this to trick her into kick-starting his absolute rule of the world.