Jerusalem is under siege by the armies of Nebuchadnezzar II, while his daughter Fenena is held hostage by the Israelites.
His elder daughter, Abigaille, plots to overthrow the king and seize the throne.
After conquering the city, Nebuchadnezzar descends into madness due to his pride. Seeing his younger daughter in danger, he repents and begs the God of Israel to restore his sanity.