Hidden somewhere beyond the highest clouds is the castle of Destino, a school for very special students.
They're the Melowies, little unicorns born with a symbol on their wings and a hidden magical power. The Defense Techniques teacher tests the girls on their survival skills, leaving them in the Forest of Colors overnight.
They use a manual she has left them to build shelter and cook dinner.
Electra wanders from the group in the night and gets lost, sending the rest of the Melowies on a mission to find her.
Can they work together with their different skills and find her with the power of friendship?