The story of the series "Capital 6" begins with the death of Baba Panjali and the donation of his organs. Behbood Fariba turns out to be alive after many years and returns to Iran. In this season, he is suffering from Restless Hand Syndrome. Behtash, who was unemployed in the 5th season, is now the goalkeeper of Mazandaran Textile Football Club. Naghi Mamooli is also politicized and is the driver and bodyguard of a member of parliament. Homa, the wife of Naghi, is a newscaster. And Arastoo inadvertently enters a drug dealership with a man named Kavus and uses Naghi’s machine, driven by a member of parliament, to move drugs.