Gravity Falls: Season 2 Episode 15: The Last Mabelcorn
Starring: Kristen Schaal, Jason Ritter, Alex Hirsch, Linda Cardellini, Nick Offerman, Brad Abrell, J.K. Simmons, Matt Chapman
Length: 23 minutes
On Air Date: 7 Sept 2015
Gravity Falls: S02E15 Description: A new threat leads Mabel to venture into the enchanted realm of the unicorns. Meanwhile, Dipper learns an unexpected twist about the enigmatic Bill Cipher.