Aida, an Ethiopian princess enslaved to Amneris, the princess of Egypt, has fallen in love with the warrior Radames. As he rides into battle, Aida is torn between her love for him, allegiance to her country, and loyalty to her family. Radames dreams that if he returns triumphant, he will free Aida and marry her. But Amneris longs for Radames' affections, too. Romance and hope turn to crushing tragedy as the story unfolds.