Melike decides to divorce Taner, whom she married two years ago and returns to her parent's house. When she returns, she finds her childhood sweetheart Doğan just as she left him two years ago. On the balcony and alone... Melike's return confuses Doğan. Doğan's mother Sema is the most angry about this situation. Because she thinks that Melike's coming back will break things between her son and Ceylan, his fiancée. As a matter of fact, she is not wrong. Confused, Doğan is torn between two women. Will he go after Melike, whom he loves, or Ceylan, who loves him?

Doğan is sure that Reis and Taner will execute him within 24 hours, so he agrees to ask Ceylan from her family at his mother's insistence. Nilüfer learns that her husband has fallen into a huge debt with the notification that arrives at her shop and decides to ask for help from an old acquaintance. Melike drags Doğan into a very dangerous operation to prove that Taner is cheating on her. While the baby they kidnapped to get his saliva causes them great trouble, Doğan starts to fall under Melike's spell again. As Doğan struggles with his emotions, he is shocked when Melike opposes his decision to marry Ceylan.

Doğan goes to ask for Ceylan with his mother Sema and boss Namık Bey. But here, setbacks do not let up. They have panic attacks and cannot want the girl. Years later, Nilüfer meets her youthful love, Chief Inspector Mert, and asks her for help with her missing husband. Reis tells Doğan to do what he can to prevent Melike from returning to Taner. An accident happens to Cevdet when he says he will help Melda and Peri. Melike gets what she needs for the DNA test through Roza, but in the meantime, Taner learns that it was Roza who gave Melike information about herself and kidnaps the young woman and the security guard who helped her. While Melike and Doğan are trying to break into Reis' office to get Roza's passport, they get into a big mafia conflict. Doğan proposes to Ceylan in front of everyone.

Ceylan accepts Doğan's marriage proposal on one condition. Doğan also does not accept the conditionalization of himself. Cevdet has a problem with Zamzem and turns to the residents of the apartment for help. Doğan and Melike dive into a new action to save Roza and the security guard from Taner.

Doğan does not respond to Ceylan's offer. Reis asks Doğan for help to help Taner, who is getting mad because of Melike. A new tenant moves into the empty flat on the first floor of Kismet Apartments.

Learning that Ceylan and Doğan took a day to get married, Melike leaves the house. Doğan jumps into Melike's car at the last moment. While the two spend a night alone in a trailer by the lake, away from Istanbul, they also find the opportunity to confront about their past and relationship. Meanwhile, Taner's move to the apartment causes a great chaos among the residents of the Kismet apartment.

Doğan and Ceylan take a day off for the wedding. Melike reveals her to-do list with Doğan. Reis takes Melda, Peri and Sema on a tour of the mafia. Taner proposes to Roza. Mert receives shocking news from his wife in Germany.

The residents of Kısmet Apartment mobilize so that Taner and Roza can get married. Taner makes plans to bring his relatives in Ukraine so that Roza does not cry anymore. Melike decides to start her own business. Doğan and Melike finally confront about their kiss. Taner lets Efe see his father, if only for two hours. However, the results will not be as expected. Efe's failure to return causes great chaos in the Kismet Apartment.

Reis, Doğan, Taner and Osman; They go to save Efe. Doğan becomes a legal adviser to the mafia council, but leaves the meeting as "Istanbul's Ambassador". Ceylan, Sema and Nilüfer go out for dowry shopping. Doğan and Melike meet to do the last thing on the list. Then... Then there will be an end, but contrary to popular belief, happiness does not become "Kismet" for anyone.