When a form was submitted via Gravity Forms, do adjustments to the letter case via WP Webhooks Formatter. When a payment was completed via Gravity Forms, find and replace text within a text value via WP Webhooks Formatter. When a payment was completed via Gravity Forms, extract one or multiple URLs from text via WP Webhooks Formatter. "Tourist Trapped" is the pilot episode of the Disney XD show Gravity Falls. It aired as the series preview of the show, after the premiere of the Disney Channel Original Movie, Let It Shine, on June 15th, 2012. Gravity Falls officially premiered on June 29, 2012 on Disney Channel. When Dipper and Mabel Pines arrive to spend their summer break in the remote town of Gravity Falls, Oregon, Mabel.