Meanwhile, Rinaldo finds himself mesmerized by Goffredo’s daughter, Almirena. Armida, seeing an opportunity, seizes the girl as bait. Rinaldo is paralyzed by grief but then, encouraged by Goffredo, sets off to save her.
In Armida’s enchanted domain, Almirena weeps, Argante considers his next move, and Armida waits for Rinaldo to appear. When Rinaldo attempts to rescue Almirena, the battle is intensified and complicated by Armida’s attraction to Rinaldo. Using magic, she disguises herself as Almirena, and thus succeeds in capturing Rinaldo.
Goffredo learns of Rinaldo’s plight; he and the other knights decide to storm Armida’s castle, despite a sorcerer’s warnings. When their first attempt is unsuccessful, they return to the sorcerer, who arms them with magic, allowing them to rescue both Rinaldo and Almirena.
The heroes are reunited, still reeling from all they have endured. Argante and Arminda soon appear and the fighting begins again. Rinaldo’s heroic response brings the war to a definitive conclusion, freeing combatants on both sides to begin a new life.
– Courtesy of Glimmerglass Festival