The grand opening of a major Caspar David Friedrich exhibition is days away when a powerful sneeze triggers a chain reaction of chaos that leaves the preparations in disarray. Three friends — Kaspar, David, and Friederike — must pull it back together. Their primary problem: the Wanderer above the Sea of Fog has come to life and gone wandering through Friedrich's own works, and bringing him back means chasing him through the paintings to solve the puzzles he has left in his wake.