Twelve-year-old Carrie is excited to spend the night at her best friend Betsy's house one Saturday night in the turn of the century Galveston, Texas. But when her parents receive a last-minute invitation to a high-society party, they insist Carrie stay home to babysit her little brother, Henry. Despite a storm brewing -- and Carrie's protests over the change in plans -- her parents go to the party. As the storm approaches, the streets begin flooding. Henry is scared, and Carrie tries to calm him. But then hurricane hits, and the house is shaken from its foundation. Carrie must make some quick decisions to save herself and her little brother from the Great Galveston Hurricane.