Mortal World 2 tells the story of the Mermer family, who now continues their lives as outlaws, struggles with their own problems. Serhan has difficulty adjusting Begüm, who is pregnant, to their new life. While Serhat is now missing a woman in his life, Gazanfer struggles to keep his family together against the organization. However, Zafer's fall into the hands of the organization turns everyone's lives upside down. Looking for a way to reach Zafer, Gazanfer finds the solution by asking for help from an old friend. This time, the Mermer family will have to make one last heist to reunite with their children.

由于特工埃尔坦的缘故，DISCO情报机构一项持续多年的秘密行动失败了。埃尔坦被停职后，和妻子塞达一起去度假。在那里，他遇到了班德尔马的理发师扎费尔和他的妻子艾努尔。扎费尔得知埃尔坦的身份后，提出一个条件，只要他愿意保持沉默：他们必须一起完成埃尔坦未竟的行动。因为情报机构正在追捕的组织就在同一家酒店，行动的成败掌握在埃尔坦手中。从未担任过外勤特工的埃尔坦勉强同意让扎费尔参与行动。塞达和艾努尔的意外支持将彻底改变一切。