The Mystery of Gravity Falls (1) S121E121 - The Mystery of Gravity Falls (1) 2015
Episode 1 is an intro to the series, and briefly discusses Dipper's discovery of Journal 3.
- Released: 2015-02-14
- Runtime: 50 minutes
- Genre:
- Stars: Jason Ritter, Kristen Schaal, Alex Hirsch, Linda Cardellini
- Director: