King of Sparta Leonidas wants a new destiny for his country and the entire Greek world. But to do this, you need to destroy the army of the ephors and King Leotichides - and become the sole ruler. Leonidas is preparing a secret invasion of his homeland. There is no time for a long war, it must become lightning fast, because the Persians are only driven back from central Greece, but not completely defeated. Leonidas’ faithful servant Gisander, whose spirit was transported to this time from the twentieth century several years ago, sails with the king to Sparta on ships the first invading army. This is a fleet prohibited by the ephors and secretly built by Leonid, equipped with ballistas - no less secret weapons that the rest of the world does not yet know. However, most of the citizens of Sparta still stand for the ephors and the old order. If Leonidas wins, the country will take a new path, and the results of these changes will shock the entire Greek world. A civil war begins in which the best warriors fight each other to the death. This is Sparta, and this is a battle of heroes. They never retreat here. Here you either win or you die.