With Rezvan's death his nephew Betty comes to Iran from abroad to sell the lands she has inherited from him. Fahim wants the lands for himself but Bahram is preventing him. This put them to confront each other while Betty too falls in love with Bahram.

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A young worker is infatuated with the factory owner's daughter.

A criminal group intends to murder a girl, but a young man saves her. The girl is the daughter of a wealthy man, and after his wife's death, the father married a widow. The girl's stepmother, a young woman, plotted the girl's murder to inherit her husband's wealth herself. With the young man's presence in the girl's life, the stepmother's plan becomes impossible to execute until the family's father is killed in an accident, and the woman stages the scene to make it appear that the young man committed the murder. The police, based on the evidence, pursue the young man and his friend. The girl decides to help the young man. Eventually, it turns out that the killer is the victim's brother, whom everyone thought had died. With the discovery of the truth, the young man's innocence is proven, and he begins a life together with the girl.

Ahmad and Samad, along with their mother and little brother, are going from their village to the city and staying at their older brother Ebrahim's house.

Kamran Khan is a factory owner who is unhappy with his life.

Dr. Chang Lu, a Chinese scientist, has created destructive and evil facilities, and the secret intelligence organization has discovered this and assigned one of its elite agents, known as "Golden Arm," to investigate the matter.