Rodičia pošlú dvojčatá Dippera a Mabel na leto k prastrýkovi Stanovi do Gravity Falls, kde deti zistia, že sa v meste deje niečo veľmi zvláštne.

Alfred Molina, Andrew Pifko, April Winchell, Brad Abrell, Carl Faruolo, Carter Hastings, Chelsea Peretti, Chris Parnell, Chris Wylde, Conrad Vernon, Coolio, Corey Burton, Danielle Fishel, Daryl Sabara, Dee Bradley Baker, Diedrich Bader, Eric Bauza, Facundo Reyes, Frank Caliendo, Fred Tatasciore, Greg Cipes, Greg Ellis, Gregg Turkington, Grey Griffin, Horatio Sanz, J.K. Simmons, Jackie Buscarino, James Adomian, Jeff Bennett, Jennifer Cody, Jennifer Coolidge, Jillian Bell, Jim Cummings, John DiMaggio, John O"Hurley, John Oliver, John Roberts, Jon Stewart, Jonathan Banks, Jorma Taccone, Joshua Rush, Justin Roiland, Keith Ferguson, Ken Hudson Campbell, Ken Jenkins, Kevin Michael Richardson, Kimberly Brooks, Kurt Braunohler, Kyle MacLachlan, Lance Bass, Larry King, Louis C.K., Mark Hamill, Mckenna Grace, Michael Rianda, Nathan Fillion, Neil deGrasse Tyson, Nick Offerman, Niki Yang, Patrick McHale, Patton Oswalt, Paul Scheer, Peter Serafinowicz, Pippa Haywood, Scott Menville, Tara Strong, Weird Al Yankovic, Will Forte, Will Friedle