In this sprawling peplum tale, Furneaux plays the drop-dead gorgeous Semiramis, a vile, scheming member of the King of Assyria's court. She is an overtly ambitious beauty who doesn't hesitate to be faithless, unscrupulous and manipulative. She plays her own king and his powerful general against each other, all the while being in love with an enslaved king played by the dashing John Ericson. She soon rises to power as the queen of a new city Babylon.