The series begins with history teacher Nima Zande-Karimi (Siamak Ansari) realizing that his extensive research on Persian and world history is of little use to financing his day-to-day life. He is about to leave Tehran for good to go back to his hometown by the name of Darab, when he comes across young university student Roya Atabaki (Sahar Jafari-Jozani) who is researching for her final year dissertation, which is regarding the period 1198–1203, that is said to be a period of turmoil for Iran's ruling elite. Such turmoil that, very few books are available on that period for Roya's research. It is then that Nima receives an anonymous telephone call, which leads him to Niavaran Palace (currently a museum), where he is told to have a coffee and wait. The coffee (which is bitter) is ready and he duly drinks it, his sight becomes hazy, and when he manages to refocus he is in the year 1201 (1822 AD), and the story develops therein.
Siamak Ansari
Mohammadreza Hedayati
Mehran Modiri
Elika Abdolrazzaghi
Sahar Zakaria
Reza Feyznorouzi
Maryam Bbakhshi
Sahar Jafari Jozani
Aref Lorestani
Borzoo Arjmand
Hadi Kazemi
Javad Ezzati
Mandana Soori
Nader Soleimani
Falamak Joneydi
Ali Lak Poorian
Reza Nikkhah
Behshad Mokhtari
Saed Hedayati
Shayan Ahadifar
Bijan Banafshekhah
Aram Jafari
Ramin Poor Iman
Fatemeh Hashemi
Sam Nouri
Hamid Kashani
Shadi Ahadifar
Arash Nozari
Ramin Nasernasir
Mahlegha Bagheri
Sepand Amirsoleimani
Yousef Sayadi
Saeid Pirdoost
Saeed Amirsoleimani
Biyook Mirzaei
Amir Farzam
Mehdi Nateghi