Thunder

To find pearls, a fisher man goes to the sea on a cursed ship. But the ship seamen leave him in an island and go. 15 years later he finally returns home, where his 15-year-old son, provoked by the diamond smugglers, wants to kill him.

A group of thieves gets attacked by the police, and one of them is shot dead by Reza.

Mehdi, a skilled gambler, finds his life shattered when his treacherous friend Hossein conspires with a woman named Fakhri to cheat him out of a substantial fortune. When Mehdi discovers the deception and confronts Fakhri, he becomes the prime suspect in her murder, a crime secretly committed by Hossein. Wrongfully imprisoned, Mehdi suffers further tragedy when Hossein's advances toward his wife, Batool, lead to her death, leaving their young son Mahmoud alone. Years later, Mahmoud unknowingly becomes involved with Hossein and falls in love with his daughter, Asiye. Meanwhile, after twenty years behind bars, Mehdi returns in disguise, determined to reclaim what was stolen from him and confront the man responsible for destroying his family. As buried identities are revealed and old betrayals resurface, the intertwined lives of the two families culminate in a deadly confrontation.

Abdullah is sentenced to death for Hossein's murder but manages to escape. He travels through many cities and eventually finds a clue about Hossein in Abadan. He discovers that Hossein is alive and living in secret. Abdullah informs the police about what happened, thus saving himself from the death penalty.

A famous singer named Eskandar who killed his cousin out of love and served 15 years in prison is released. He finds out that his nephew Sasan has impregnated his late cousin's daughter Negar and is reluctant to marry her. At first Eskandar tries to convince Sasan but when he flees the city, Eskandar marries Negar to save her honor. They decide to stay married until Sasan comes back.