Adrift at sea a boy and his pet white elephant, Jumbo, wash up on an island that is between two other islands at war with one another in this musical fantasy film.

The story of a young prince and young princess from opposing tribes, as they struggle to deal with their lives and the hardship brought on by their position in their respective families.

The Goddess Venus is jealous of the beautiful human girl Psyche and blames her pet unicorn, Unico, as Psyche's source of good luck that keeps her from the harm of the goddess' cruel intentions. Unico has the amazing power to make anyone he meets happy. Whether it's because of his personality or the powers of his horn, no one knows. Venus has Unico banished, and the West Wind now takes Unico from one place and time to the next. Taken to a heavily polluted city, Unico meets a sickly girl named Chiko who is suffering because of the pollution of a nearby factory that darkens the entire sky. Unico then is determined to cheer her up, cure her, and destroy the nearby factory.