 As children, Princess Odette and Prince Derek hated the thought that someday they would be forced to marry. Yet, as they grew up, their looks as well as their feelings for each other changed. However, in one night everything goes wrong, Derek makes an insulting remark, and Odette vanishes. With everyone believing her dead, Derek is the only one who will not give up hope, using what little clues he has to track down whatever took the princess. Meanwhile, in a secluded ruin, an enchanter with an eye for Odette s kingdom has turned the beautiful maiden into a swan. She may only remain in her human form when moonlight touches the lake she s imprisoned beside. As the two search for one another, they learn what it takes to make a vow of love that can last eternity.