Bess has just arrived at Starbright Stables. Her aunt Sophie owns the stables, and Bess can't wait to ride! There's just one problem. Aunt Sophie teaches jumping lessons, and Bess has to get used to a completely new style of riding. Bess is nervous. Her horse, Cedar, is nervous too. Thankfully, Bess makes fast friends with Lily and Dot. But will she quit lessons before her new friendships have a chance to grow?