Dipper uses time traveler Blendin Blandin's time machine to undo ruining his attempt to impress Wendy at a fair, but accidentally changes history for the worse, especially for Mabel. In the end credits, Blendon time travels to three scenes from earlier Gravity Falls episodes, wherein he is actually included. Written by
Did You Know?
The names of the time policeman that arrest Blendin are Lolph & Dundgren, if you swap the first letter from both names you get the name of actor Dolph Lundgren. See more
Grunkle Stan, is that legal?
When there's no cops around, anything's legal!
References The Time Traveler's Wife