Kadir Adalı is the Chief Commissioner of the Organized Crime Branch of the Istanbul Police Department. The moment he loses his wife and daughter in a terrorist act, his happy family life is destroyed. Feeling very sorry for what had happened and suffering from this loss, he decided to end his life. Without realizing it, he causes a catastrophe that changes the lives of four people. Four cars, four people, four lives, four destinies collide. In one of the cars is his childhood friend Zeynep, with whom he grew up in an orphanage and is even about to get married, but he refuses to do so because of his strong desire to work in the police because his father was a police officer who at the time  Duty was killed. Instead, Kadir marries another friend from the orphanage, Aslı. Zeynep marries Galip Tunç and starts working as a bank manager and gives birth to a daughter named Aylin, but Galip owes a mob that kidnaps her daughter Aylin after Galip escapes from Turkey and asks Zeynep to pay her husband's debts. Slowly  And for this reason, he robs the bank where he works. After his arrest, he asks Kadir for help to save his daughter. In another car is Zeynep's lawyer, Cemre Gür, the daughter of Veli's lawyer, Selim, who is engaged to Demir. One of them, Kerem, a powerful friend in the fourth car, stabbed him. The Kerem partner, Yakup, uses this recording to blacken Demir and Belma.