On the night of the Party at the Mystery Shack, Dipper discovers a way to clone himself and thinks he's found the key to finally wooing Wendy. But will Dipper muster up the courage to ask her to dance? Or will his clones get jealous and turn on him? Then, when Lil' Gideon knocks Mabel out of the 'friend zone' and into the 'romance zone,' Mabel can't turn him down! Will Dipper help Mabel break up with Lil' Gideon? Or will Mabel become Lil' Gideon's...

Join twelve year-old twins Dipper and Mabel Pines as they explore the oddest spot on the map. Shipped off to spend the summer with their gruff Great Uncle ('Grunkle') Stan? who runs the tacky tourist trap, 'Mystery Shack', the kids uncover mysterious surprises, unsurpassed silliness, and supernatural shenanigans lurking around every corner of the deceptively sleepy little town.