Young scientist Jamal Zakhidov is convinced that the ruins of the ancient city of Aran are located in Azerbaijan. Zakhidov is seeking to organize an expedition to the area where he believes Aran is located. Zahidov's friend, a young archaeologist named Jalil, is also well versed in geology. He believes that the rocks he accidentally found at the foot of Gyzyl-Gaya contain valuable materials. But Imam-zade, a secret agent of a foreign intelligence service, steals these samples. The expedition mem...