Pheidippides, a brave soldier and messenger of ancient Athens, is ordered by the Athenian general, Miltiades, to run to Sparta and request aid to confront the Persian army led by King Darius the 1st, in the Battle of Marathon.

Pheidippides, a brave soldier and messenger of ancient Athens, is ordered by the Athenian general Miltiades to run to Sparta and request military assistance in facing Darius' Persian army, led by Datis and Artaphernes, in the impending Battle of Marathon. Pheidippides covers the distance from Athens to Sparta in 30 hours, only to receive a disappointing response from the Spartan king, who refuses immediate aid. Despite the setback, 10,000 Athenian soldiers will courageously confront 100,000 Persian invaders. This is the story of one of the most pivotal battles in history, the Battle of Marathon, where men and Gods fought together for the glory of Athens.