Nancy and Bree are unicorn experts. (That's a fancy way of saying they know almost everything about them.) When they decide to go on an epic quest to find a unicorn, Freddy and JoJo want to play too. Together they hunt for glitter, unicorn horns, and silky white hair. After searching high and low, Freddy and JoJo complain that they are all quested out! But the big sisters won't quit, and take a guess at what they discover!