It's time for a musical adventure at Barney's Fantasy Fair! When a little girl named "Melanie" dreams of playing her violin in a talent show, Barney, Baby Bop, and BJ help her realize her dreams with the help of a new dino friend, "Riff", who is Baby Bop's and BJ's cousin. Riff knows how to find music everywhere! Then, he shows the friends all about music and sounds as they sing songs, ride amazing rides, and play games! They also discover that some dreams are even bigger than they imagined. So, let's go to the fair, join in the fun, and let's make music together!