In the final confrontation between Bill and the remaining townspeople, the Pines family must make a great sacrifice or be defeated by this otherworldly invader.
As Bill and his friends attempt to expand their realm of weirdness, Dipper and the gang run into some unexpected problems while trying to rescue the imprisoned Mabel.
While Mabel is busy planning her and Dipper's upcoming 13th birthday party, Dipper and Ford venture under the town where they discover its most shocking secret yet.
Grunkle Stan takes the kids on a road trip to sabotage all the other tourist traps in Oregon.
Ford gives Dipper some information about Bill. Meanwhile, Mable and the girls set out to find a unicorn so that they can use its hair to protect the Mystery Shack from Bill.
Grunkle Stan runs for mayor, so Dipper and Mabel try to help their gaffe-prone uncle become the perfect candidate.
Dipper receives his favorite board game in the mail and gets his great uncle to play with him. Unfortunately, the game's wizard materializes in Gravity Falls and they must find a way to defeat him.moreless
Grunkle Stan is forced to reveal his history with his twin brother to Dipper and Mabel.
After government agents take him into custody, the twins uncover some things that cause them to question how much they know about their Grunkle Stan.
Dipper tries to rid the Northwest Mansion of a ghost before it wreaks havoc on Pacifica's upcoming party.
Mabel takes matchmaking too far when she steals a love potion from a real love god.
Mabel and Dipper's attempts to celebrate Soos' birthday get interrupted by the time traveling Blendin's quest for revenge.
The kids discover there is a secret society in Gravity Falls.
This episode consists of Stan telling three different stories. The first one, Hands Off, is about Stan getting cursed by a witch.Abaconings, is about Dipper's attempt to get smarter and the last one, Clay Day, deals with Mabel's fear of stop motion animation.moreless
Soos needs a date for his cousin's engagement party, so he uses a dating simulator game to help him to be able to talk to girls.
Mabel puts on a sock puppet rock opera to impress a local puppeteer, but the show doesn't go quite as planned.
Mabel challenges Pacifica to a miniature golf contest.
Dipper's secret journal pages lead him and the gang to the author's hidden bunker.
The CIA showing up during the Mystery Shack's re-opening leaves Stan feeling threatened; that is until he's faced with an even greater threat: zombies!
In the second part of the season finale, Li'l Gideon has managed to take possession of the Mystery Shack and unless the Pines family can somehow reacquire it, the fate of their beloved tourist trap is doomed.moreless
To get his hands on the deed to the Mystery Shack, Li'l Gideon summons Bill Cipher, a supernatural entity with the ability to steal a memory from a person's mind. This is part one of the two-part season finale.moreless
When a prehistoric beast snatches Waddles, the Pines family must journey to a land trapped in time to rescue him.
Mabel finds out her favorite boy band is a bunch of trapped clones and tries to free them. Meanwhile Dipper is convinced that Robbie is trying to brainwash Wendy with a secret message hidden in one of his songs.moreless
After discovering a hidden room inside the Mystery Shack, Dipper and Mabel compete over who should have it because they want their own space. When competing the two figure out that the carpet in the room has electric body swapping properties.moreless
When Mabel befriends a cute merman trapped in the public pool, she's determined to help him out.
Dipper, Mabel, Soos, and Stan fall into a bottomless hole. As they fall, they pass the time by telling stories to each other.
Grunkle Stan bets Mabel that for the next 72 hours, he can make more money on vacation than she can running the Mystery Shack. The winner gets to be the boss for the rest of the summer.moreless
Dipper and Wendy are excited to take part in Gravity Fall's annual event, Summerween. But when Dipper hears Wendy say that trick-or-treating is for kids, he reconsiders.
Dipper gets unconformable with the fact that he is shorter than Mabel. So he searches for some magic that can make him grow. Then Gideon finds out about the magic and tries to tamper with their heights.moreless
Challenged to a fight by Wendy's boyfriend, Robbie, Dipper is left feeling helpless and hopeless. His apprehension turns to excitement, however, when he finds out that he can turn characters from his favorite arcade game, Fight Fighters to life, he chooses Rumble McSchermish so he doesn't have to fight Robbie. It looks like Dipper has the upper hand but then things take a turn for the worse.moreless