Kurulus Osmn
Ten to fifteen years[b] after the Berke-Hulagu war, Ertuğrul Ghazi goes to Konya and he leaves his brother, Dündar Bey, in charge of his tribe. Dündar Bey is susceptible to coercion by others into carrying out their wrongdoings. He falls into the trap of the devious Selçuk Sançak Bey Alişar, and the merciless princess of Kulucahisar, Sofia, who seeks to kill all the Turks. Osman, Dündar's nephew, can see through Alişar and Sofia's plans and warn him about them, despite his refusal to listen. As they continue to build more tension against the Kayı, Geyhatu sends Komutan Balgay to cause more trouble and stop the Kayı, especially Osman, from rebelling against the Mongols. Dündar, who bows down to the Mongols becoming the Sançak Bey, can't see Alişar's anger over his position being given over to him, and he believes him when Alişar blames Osman for his son's killing. Soon after, along with the threat from Kulucahisar, Dündar is shown the truth; Alişar is beheaded by Osman; and Osman has married his love at first sight, Bala. Following this, after many difficulties, Balgay is presumably killed by Osman while Kulucahisar is conquered by the Kayı with Sofia's death happening in the process.