The free-living young stallion Spirit is captured and is supposed to be tamed. But twelve-year-old Lucky, who is new in town, frees him. From then on the form a tight bond and have adventures with two their friends Pru and abigals and their horses. They prepare for races, hold a surprise party or go on a treasure hunt. The Undercover range of Spirit - Riding free products provide plenty of adventure at school and make hearts of horse girls beat faster.