The city of Thebes has come under the cruel domination of Sparta. Diomedes and several of his friends strive to throw off the Spartan yoke even while Diomedes romances Dorida, daughter of the Theban governor who's collaborating with Sparta.The city of Thebes has come under the cruel domination of Sparta. Diomedes and several of his friends strive to throw off the Spartan yoke even while Diomedes romances Dorida, daughter of the Theban governor who's collaborating with Sparta.