Mark Peterson gets a urgent message from the ocean. His secret he kept since he was ten years old now surfaced once again. Opella was in trouble. A city of mermaids were pleading for his help. Mark had no choice but to let his secret out. He couldn't save Opella without help. Sarah, Mark's wife, is a strong, intelligent women. She had to know about the mermaids. Mark needed her to help him. Between the two of them they must to Opella.