In this, magical Barbie adventure, Mariposa is sent to bring peace between her fairyland Flutterfield and their rival fairyland Shimmervale. While Mariposa doesn't make a great first impression on their King, she becomes fast friends with his shy daughter, Princess Catania. However, misunderstandings cause Mariposa to be banished from the fairyland. When Shimmervale is in danger, Mariposa rushes back and helps Princess Catania save her fairyland and together, the two girls prove that the best way to make a friend, is to be a friend.