Nancy and her pals, George and Bess, are invited to go on an intern at a nature reserve in Australia. The head ranger begs them to help solve a mystery that arose. It included several animals missing and others sick seemingly over the course of a week along with bizarre accidents. Workers are convinced the reserve is haunted. The owners of the reserve and the other workers seem to have amnesia for the week and can't remember much. Is someone lying or is it an outside job?
4 parts