Plot synopsis: 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.