Mysterious Town Part 1

Phineas and Ferb visit a town called  Gravity Falls and see some mysterious things about it.

Transcript
It starts out in Phineas and Ferbs backyard.

Phineas: so Ferb,what do you want to do today?

Linda: Phineas. Ferb. We are going to a another town. Pack youre stuff.

Phineas: ok mom.

It cuts to the car on the road.

Isabella: thank you for letting me come  with you guys on this trip.

Phineas: hey,wheres perry?

Lawrence: he is being baby sitted.