It's the year 480 BC and the greatest army ever gathered in the ancient world is on the march to conquer all of Greece. An irresistible force, they overwhelm all who dare to stand in their way. One man steps forward to stop them, followed by 300 companions. This man is Leonidas. His companions are Spartans. They march to stop the Persian advance and meet their destiny at the narrows known as the Hot Gates. Twelve-year-old Agis runs...