TV-Y7
S1 • E8 Aug 16, 2012 23m8.1
The kids try to expose Pacifica Northwest's fraudulent claim that her great-grandfather was the founder of Gravity Falls. Meanwhile, Mabel tries to prove that she can be serious, but learns her silliness can help. Once they figure out the truth, the kids are about to be sent to a government facility in Washington D.C.
