S1E20 — We Will Write Epics

Osman ambushes Dündar and Zöhre, who were taking their daughter, Aygül, to get her married to Alişar, he sought to show them that he didn't kill Batur. He trusts Aygül that she believed him that he didn't kill Batur, however, as she didn't trust him from the start, when she is let go, she tells Alişar everything and asks him to save her parents. Later, Aygül's parents are freed because of her betrayal.