Odile is disguised as Odette by her father, the Magician Von Rothbart so that she can trick the Prince into asking for her hand in marriage. Odette, seeing Odile and Siegfried kiss, runs back to the Lake broken-hearted.
Prince Siegfried glimpses her fleeing form, realises his mistake and chases after her. Soon the confusion is cleared up, and Odette forgives Siegfried...unfortunately Von Rothbart is watching this touching scene.