Two girls plus two horses plus an entire summer equal...you do the math. Hint: enough calamity and escapades to exhaust a normal person. But Nicki and Wynne are far from average girls. Nicki and Wynne share a love of horses but not of adventure. Nicki finds herself being dragged by the strong-willed Wynne on trail-rides through thunderstorms; pig chases; hunts; and a horse show with an escaped pony determined to find her stablemate even if he's busy jumping on the outside course.