No matter how hard she tries, Princess Twiggy cannot stay out of trouble. Her father has laid down strict rules, and Twiggy manages to break all of them. Flying beneath the royal radar, the headstrong princess drags her best friends into yet another harebrained adventure. Except this one turns dangerous. It also drives a wedge between Kate and Holly, who are trying to get ready for an important horse show that Mrs. Dean is pushing for. Angela runs hot and cold on this, which ramps up Kate’s suspicions. Holly is concerned, too.  But their worries about Angela’s erratic behavior take a back seat when they’re confronted with a rival team that’s bent on destroying Timber Ridge.