As the siege on Alamut Castle intensifies, Al-Sabbah gathers his followers to devise a strategy to counter the attack.

Donia Zad and Hassan Al-Sabbah reunite at Alamut Castle. Later, after sending his son Al-Hussein to another castle, Hassan begins plotting the assassination of Nizam Al-Mulk.

After his followers renew their allegiance to him, Al-Sabbah plots to seize the Alamut Castle.

Donia Zad and her children try to make a getaway with the help of Zaid Ibn Sayhoun. Elsewhere, Nizam Al-Mulk sentences Hassan Al-Sabbah to death.

Hassan’s plan to kill the Abbasid Caliph fails. Nourhan runs away on her wedding night and is kidnapped. Hassan is arrested and Abu Ali confronts him that he has betrayed the covenant and threatens to torture him and then kill him.

Al-Ghazali explains the difference between Islamic sects to his students and reveals the reality of the Batiniyya groups. Sultan Malik-Shah prepares for his visit to the Abbasid Caliph to marry his daughter.

Lifelong friends Hassan Al-Sabbah, Nizam Al-Mulk and Omar Khayaam reunite in Isfahan. Is it time to fulfill their childhood pact?

Hassan pledges allegiance to Caliph Al-Mustansir Billah, but a sudden assassination tips the scales in the Fatimid Caliphate and puts him in an unexpected situation.

Omar Khayaam heads east to accept a royal invitation while Hassan is forced to leave west to Cairo. There, their women continue to inspire their dreams and ambitions.

Hassan Al-Sabah, Nizam al-Mulk, and Omar Khayyam agreed to support each other if one of them came to power.