When Princess Ríona spots a unicorn, no one believes her. Determined to prove that it wasn't just her imagination, she sets out to find the unicorn. However, what she discovers is more than she bargained for.The Queen is not pleased with either her daughter's escapades or her choice of friends, and she wants to send her away so that she may learn the proper behaviour becoming of a princess and mix in appropriate company. As Ríona overhears this she knows she has to get away and quickly at that.