The story of this series revolves around a young girl named "Hojan", an Iranian elite and inventor of an important product that was previously imported from abroad. He succeeds in producing this product, making Iran free from the need to import it. But some profiteers who have interests in importing this product are plotting against him. They try to prevent the mass production of this invention and even reach the point where they plan to physically eliminate him. Later, the police get involved to protect "Hojan" and confront the criminal gang.

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