Parvin meets a young man named Jalal Agha-Balakhan on the street and takes him to his friend Azar's birthday party. Jalal, who is a mechanic, introduces himself as a engineer Omidvar. Parvin also pretends that his father is a police colonel. Azar is also interested in Jalal; But soon Bahram, Azar's friend, seeing Jalal in the mechanical workshop, doubts Jalal's job and social status and discusses the matter with Azar and Parvin.

Ahmad Ramzi steals from a company's safe. But someone informs the police...

The actions of the Russian and British embassies and the security forces of the central forces have made the people miserable. Mahmoud Khan, who is the secretary of the British Embassy, resigns from his job in the British Embassy and joins the people and incites them against the British and the Central Powers ...

Akbar and Aghdas plan to get married, but Akbar gets into a fight with a man named Qasim Siah, and is imprisoned.

Mehdi “the Leopard” is released from prison after seven years, only to find Ghasem and his gang standing in his way — they have shut down his gambling den and driven the neighborhood to desperation. Mehdi helps an old woman, and her granddaughter Maryam — whose father is in prison — asks Mehdi to pretend to be her father in front of her friends. Mehdi agrees, and the two gradually grow fond of each other. Ghasem and his men plot to kill Mehdi, and after failing in their first attempt, they kidnap Maryam...