"Kuruluş: Osman" tells the story of Osman Ghazi, the son of the Turkish ruler Ertugrul. He is a brave and just warrior, destined to become the leader of his settlement. His main dream is to transform the small Kayi tribe into a powerful and mighty empire. In order to achieve this goal, he is willing to fight against neighboring settlements and conquer foreign lands to expand his territories. However, Osman will face numerous obstacles along the way, including traps, betrayals, and defeats.