The Junior Nationals are coming up and the theme of the competition is western riding. Horseland must pick one rider to represent them and the gang begins to compete to see which one of them will go to the nationals. Everything is going smoothly until they find out that a famous rock star they all like will be a judge at the competition. Soon, they all begin to turn on each other and start letting the chance to meet their favorite singer take priority over their friendship. Unless they find a way to fix it, the competition may end up costing them their friendship.