1. On the Bus. (PILOT)

What the title says. After defeating Bill and saving the town of Gravity Falls, Dipper and Mabel spend their next summer at a little town in South Park, Colorado, which is very small. They meet Kyle, Kenny, Stan, Cartman, and all of the habitants of South Park. They go on all these weird adventures, but Dipper has a bad feeling that Bill might be in this new town.. and probably ruin their summer break AGAIN.