The siblings travel back to 1906 San Francisco, California, just moments before the devastating earthquake strikes. They must find a specific scroll before the massive natural disaster begins. They experience the early morning hustle of the city, but the ground soon begins to tremble violently. They experience the terrifying power of the earthquake and the resulting fires that quickly engulf the city. They are forced to help a lost puppy and use their quick thinking to navigate the destruction and escape the flames. The trip is a dramatic lesson in history and natural disasters, teaching them about courage and resilience during a time of major crisis. They must find a scroll before the earth begins to shake.