Fifer makes a bedtime wish for a real, sparkly unicorn, and with a little sneaky help from Booga Buggie, her wish actually comes true. When Sprinklehoof the unicorn appears, the kids’ house turns into a bouncing, glittery playground full of surprises. But as the magic grows bigger and sillier, the kids must work together to help their new unicorn friend calm down before things get too out of control.