The film based on the best-selling game of 2003
Dastan, the youngest son of the king of Persia Sharamana, along with three brothers and uncle are living on a war expedition. They manage to intercept smugglers caravan, from which state that the Holy City of Alamut is the ally of their enemy. Despite the prohibition of the king set off to deal with traitors. At the time of acquisition of the fortress, each of the four brothers seek an appropriate trophy for his father. The oldest of them, Tus, says Dastan, that gave him a magnificent robe. After returning home, when only Sharaman imposes it on himself, is absorbed by it. Dastan, along with the kidnapped princess Tamina of Alamut to escape punishment for the alleged złaknionym killer guard captain of the king, they discover a mysterious dagger unusual properties found in Alamut. Dastan, along with a companion, he decides to return to the Holy City, to find out whether, and if so, why, his brother used it to get rid of his father.
