Archaeologists have found evidence of ancient Mayan cultural influence on Florida's 1st people; the Native American Indians. Kelly and Chip, now 15, continue their apprenticeship with Xandu, their Shaman teacher. The teens discover a magical undersea kingdom and a treasure map based on a secret code. An unexpected detour plunges them into a swampland where they learn survival skills and discover ancestral knowledge leading to a miraculous healing...