
Twins Dipper and Mabel Pines are sent to spend the summer with their great-uncle, Grunkle Stan, in the mysterious town of Gravity Falls, Ore. Grunkle Stan has the kids help him run The Mystery Shack, the tourist trap that he owns. The twins try to adapt to the weird surroundings but sense there is something strange about Gravity Falls and begin to unlock its secrets. When Dipper uncovers a cryptic journal that offers insight into the town's mysteries, he and Mabel use it and their enthusiastic desire to vanquish evil to battle the imminent mysteries that surround them.

Grunkle Stan takes the kids with him on a road trip.

Mabel decides to plan for her and Dipper's 13th birthday party.

Trapped in the apocalypse and menaced by villains new and old, Dipper finds himself in a race against time.

Dipper, Soos and Wendy must save Mabel from a strange new world; Bill's forces plan their next move.