Released from jail after a twenty-year stretch, Nazim returns to Istanbul to find life in turmoil, his family life ruined, and has to deal with a series of personal disasters in the process.

Nuri, from the Selimoğulları family, kills Turgut, from the Kadiroğulları family. However, he is saved from prison thanks to his relatives who witnessed the crime. Both families have children who have been educated abroad. Dr. Osman, from the Kadiroğulları family, is in love with his uncle's daughter, Türkan. However, Türkan sees him as an older brother. Kemal, an engineer from the Selimoğulları family, also loves Türkan. The three young people begin to fight in their own way to resolve the blood feud. Over time, Kemal and Türkan grow closer. However, the feuding families oppose this relationship and make plans for revenge.

Factory owner Nurettin Bey plans to make a profit by buying up land in a neighborhood that is set to become an industrial zone at a low price. However, Ayhan, the nephew of Kadir Ağa, a resident of the neighborhood, explains the situation to the residents. Nurettin Bey's plans are thwarted. Nurettin Bey decides to send his daughters to the neighborhood to publicize the matter to the media. Nurettin Bey's daughters disagree: Hülya learns of her father's plans and grows closer to Ayhan. Selma, however, sides with her father and tries to win over Ayhan's cousin Turan. Turan testifies against Ayhan in exchange for the money offered to him. Ayhan is labeled a bribe-taker in the neighborhood. Uncovering the truth will be difficult.