Sifir Bir tells the story of Savaş, Cihat and Azad who left their criminal lives in Adana and settled in İzmir. Adana gang leader Savaş, together with Cihat and Azad, decide to leave their violent past behind them. The three friends leave Adana, open a car wash and settle in Izmir to start a new life. However, when a little girl named Melek takes shelter with Savaş and his friends after all the bad things that have happened to her, the team takes action. They decided to chase after the men who hurt Melek and find themselves on a path of no return.
Two resentful, singer brothers Hakan and Ozan who can't get along well. Meet again in their father's funeral. Even though they want to get back to their daily lives after the funeral, their father's will won't allow it. They will take a journey with their dead father's old car in order to carry out his bequest which is to sing at a wedding in Urla.
An old pop singer who has Alzheimer's returns to her old house where she remembers her old days of climbing the stairs of fame and fortune while trying to deal with her older sister who holds her responsible for her ruined life.