Don Quixote and his servant Sancho Panza set out to have a chivalrous adventure. They meet Kitri and Basilio, a young couple who cannot marry because Kitri's father is determined to marry her off to the wealthy Gamache. Don Quixote decides to intervene.
With Don Quixote's help, Kitri and Basilio convince her father to let them marry. Don Quixote also persuades Gamache that he would prefer to marry the barmaid anyway. Kitri and Basilio celebrate, and everyone cheers Don Quixote on his way.
Violetta’s scandalous relationship with Alfredo is jeopardizing Giorgio Germont’s daughter’s engagement, and Germont persuades Violetta to leave his son. Heartbroken, Violetta promises not to tell Alfredo why. Alfredo is stunned when Violetta disappears, and decides she must have left him from self-interest. He confronts her at a Paris party and leaves her. Only when Violetta is dying does he learn the truth.