Hop aboard and get ready for the ride of your life as bus driver Barney takes the whole gang to some of their favourite imaginary destinations. First stop, a castle just for Brett where he can rule in the land of make believe. Then, it's back on the bus and on to Barney's Purple Pepperoni Pizzeria. Then, after a rootin', tootin' ride into the old west for Keesha, followed by a stop at the circus for Baby Bop, it's BJ's turn for adventure. And with a little help from Barney, he soon becomes a one-man, or rather, one-dino band.