You wake up confused, alone in a strange town known as Gravity Falls. Who are you, and who will you trust in your quest to find out? Are you willing to give up everything in search for an answer that you might not be ready for? This story is interactive and tailored by popular vote. The direction the story goes is entirely based on the choices you make.

Mabel becomes very sick, and Dipper's life falls apart. Through the stages of denial, regret, and anger, he can't bear the thought of his sister being in such a state. In desperation, he promises to make the next few weeks the best time of her life, even if she doesn't have much life left.