The life of Osman Bey, the son of Ertugrul Gazi and the founder of the Ottoman Empire.

Ertuğrul Bey and the Knights Templar in the 13th century Alba and step and step with the struggle against brutal Mongols depicts the process of establishing the Ottoman principality.

After the death of his father Murat II, Mehmet II ascends to the Ottoman throne. After braving internal and external enemies, he decides to complete what he was destined to do: Conquer Constantinople.