Jack and Annie have collected 3 pieces of writing from three previous journeys. They will save the kingdom of Camelot if they can collect one more piece of writing. This time, they head back to San Francisco in 1906. However, the moment they arrive, they are rocked by one of the biggest earthquakes the United States has ever known. Broken chimneys, stoves and lamps cause terrible fires. How can they save Camelot? Can they even get back home alive?