One Crazy Summer - Siren's Song S79E79 - One Crazy Summer - Siren's Song 2018
A behind the scenes documentary and look back at the production of Gravity Falls, and how it came to be.
- Released: 2018-07-24
- Runtime: 50 minutes
- Genre:
- Stars: Jason Ritter, Kristen Schaal, Alex Hirsch, Linda Cardellini
- Director: