#1 - Weirdmageddon (3): Take Back The Falls 9.23
Season 2 - Episode 20
In the series finale, the Mystery Shack crew and townsfolk fight against Bill Cipher and his minions in a final stand to defeat them once and for all and save the town of Gravity Falls and the world.
#2 - Not What He Seems 8.96
Season 2 - Episode 11
After agents Powers and Trigger take Stan into custody, Dipper and Mabel begin to wonder how much they actually know about their Grunkle Stan.
#3 - Weirdmageddon (1) 8.80
Season 2 - Episode 18
Trapped in the apocalypse and menaced by villains new and old, Dipper finds himself in a race against time.
#4 - Gideon Rises (2) 8.70
Season 1 - Episode 20
Li'l Gideon swindles the Mystery Shack away, forcing Grunkle Stan and the kids to move in with Soos. While Stan weighs how he can still care for his grandniece and nephew, they decide to take on Gideon.
#5 - A Tale of Two Stans 8.61
Season 2 - Episode 12
Cornered underneath the Mystery Shack, Stan must finally reveal the secrets of his past and his mysterious portal to Dipper and Mabel.
#6 - Dipper and Mabel vs. the Future 8.60
Season 2 - Episode 17
Mabel decides to plan for her and Dipper's 13th birthday party. Meanwhile, Dipper and Ford venture below the town to find its most shocking secret.
#7 - Weirdmageddon (2): Escape From Reality 8.59
Season 2 - Episode 19
Dipper, Soos and Wendy must save Mabel from a strange new world, while Bill's forces plan their next move.
#8 - Into the Bunker 8.54
Season 2 - Episode 2
Dipper’s secret journal pages lead him and the gang to the author’s hidden bunker where they find themselves face-to-face with a mysterious figure from Gravity Falls’ lore.
#9 - The Last Mabelcorn 8.49
Season 2 - Episode 15
A new threat leads Mabel to venture into the enchanted realm of the unicorns. Meanwhile, Dipper learns an unexpected twist about the enigmatic Bill Cipher.
#10 - Northwest Mansion Mystery 8.49
Season 2 - Episode 10
Pacifica enlists Dipper’s help to rid the Northwest Mansion of a ghost before he wreaks havoc on her fancy party.
#11 - Dreamscaperers (1) 8.48
Season 1 - Episode 19
Dipper, Mabel, and Soos must travel through Grunkle Stan's mind to defeat a tricky dream demon summoned by Lil Gideon.
#12 - Society of the Blind Eye 8.45
Season 2 - Episode 7
The kids, along with Old Man McGucket's help, discover there is a secret society in Gravity Falls.
#13 - Blendin's Game 8.44
Season 2 - Episode 8
Blendin returns to face off with Dipper and Mabel in a futuristic battle that could trap them forever in time jail.
#14 - Fight Fighters 8.40
Season 1 - Episode 10
After being challenged to a fight by Wendy's boyfriend Robbie, Dipper is shocked when his favorite Fight Fighters fighter, Rumble McSkirmish, comes to life to defend him, but Dipper soon loses control of Rumble and has to find a way to stop him from seriously injuring Robbie
#15 - The Time Traveler's Pig 8.40
Season 1 - Episode 9
Dipper wants to correct a mistake he made in the past with assistance from a time machine. Mabel is overjoyed when she wins a pet pig at a fair.
#16 - Scary-oke 8.36
Season 2 - Episode 1
The Pines family is starting to get everything back to normal after the Lil' Gideon incident. They throw a “Mystery Shack Is Back” party, but some unwelcome guests intend to crash it.
#17 - Soos and the Real Girl 8.29
Season 2 - Episode 5
Soos needs a date for his cousin Reggie's engagement party and looks to a dating simulator game to help him talk to girls.
#18 - Land Before Swine 8.27
Season 1 - Episode 18
When Waddles is snatched by a prehistoric beast, Dipper, Mabel, Stan, Soos, and Old Man McGucket must journey to a mysterious land trapped in time to rescue him.
#19 - Double Dipper 8.27
Season 1 - Episode 7
Stan throws a big weekend party to promote the Mystery Shack. Dipper makes clones of himself to impress Wendy. Mabel fights for the Party Queen title in honor of her two friends.
#20 - Sock Opera 8.25
Season 2 - Episode 4
Mabel decides to put on a sock puppet rock opera to impress a local puppeteer, but her show goes awry when Dipper's drive to uncover more of the journal's secrets leads to a supernatural disaster.
#21 - Dungeons, Dungeons, & More Dungeons 8.25
Season 2 - Episode 13
Dipper finds an unlikely friend to join him with his newest obsession — a board game called “Dungeons, Dungeons, and More Dungeons.”
#22 - Summerween 8.23
Season 1 - Episode 12
Dipper and Mabel go trick-or-treating in the summer and encounter a candy-loving monster who threatens to devour them if they don't bring him sweet things to eat.
#23 - The Inconveniencing 8.23
Season 1 - Episode 5
Dipper is invited by Wendy and her teen friends on a trek that leads to an abandoned convenience store that may be haunted.
#24 - Carpet Diem 8.19
Season 1 - Episode 16
The twins discover a hidden room inside the Mystery Shack and compete over who should have it.
#25 - The Stanchurian Candidate 8.17
Season 2 - Episode 14
When Grunkle Stan decides to run for mayor, Dipper and Mabel have their work cut out for them trying to turn their gaffe-prone uncle into the perfect candidate.