Dastan (Jake Gyllenhaal) is an unusual Prince Of Persia; he's a street orphan the righteous King Sharaman (Ronald Pickup) adopts after seeing him act bravely in the market square. Fifteen years after his adoption, Dastan leads a charge on the sacred city of Alamut based on iffy intelligence. The beautiful Princess of Alamut, Tamina (Gemma Arterton) is betrothed to Dastan, but immediately after the announcement, King Sharaman dies wearing a poisoned cloak an innocent Dastan presented to him. On the run, Dastan and Tamina try to evade capture by Persian soldiers while they attempt to figure out which Persian member of court actually killed the king and protect a mystical dagger that can disastrously turn back "the sands of time."