At the start of the series, twins Dipper and Mabel are sent to spend the summer with their great-uncle Stan, in the mysterious town full of unexpected situations that involve various paranormal and supernatural creatures. They soon realize that the town holds many secrets, and when Dipper obtains a book that he finds in the forest, they find their everyday lifestyle changes. Alongside them in their antics are Soos and Wendy Corduroy, who work for The Mystery Shack, the latter of whom Dipper has a crush on.