Twelve-year-old Pepper and her misfit brother, Everett, are spending their summer on Shack Island with Grandma. Pepper has mysterious dreams that foretell the future, so she decides to practice her ESP skills to see if she can get better at it. Pepper also knows she is adopted, but she knows nothing of her real family. As the summer days and starlit nights begin to work their magic, Pepper decides her Shack Island summer will be an excellent time to try to find out who they might be. By the end of the summer, shell have some answers...but they might not be the ones shes looking for.