The Persepolis-Chicago documentary is about the adventures of the Achaemenid tablet fragments dating about ninety years ago, when University of Chicago archaeologists came to Iran to repair and study the inscriptions on some of these tablets.By mutual agreement, the tablets were loaned to the Chicago to be studied and read. They succeeded to gather data on the empire from Persian sources by some parts of the inscriptions over the years, but after 80 years the tablets have not been returned home yet!