Darius the Great, king of kings, led a huge army against Greece. On the way, the Persians repeatedly outnumbered the forces, but a troop of free Athenian citizens stood in their path. In an unequal battle, victory remained with the Greeks. But people quickly forget that freedom is paid for with blood. Ten years later, Athenian society was split; rulers were mired in intrigues. And now a new Persian army—stronger than the first—crosses the Hellespont to erase weakened Athens from the face of the earth. Facing mortal danger, the Athenians turn to their allied Spartans for help…