Carly is 11 years old and lives with her grandfather on a 200-acre Virginia farm while both parents serve in the military overseas. She loves the farm, and befriends all of the animals including a sneaky red fox that stalks her grandfather's prize chickens. Her best friend is her pony, Monroe, who shares her enthusiasm for adventure. Carly's constant dream is to ride with the Riverdale Hunt Club that passes through her grandfather's property. On one particularly rainy Saturday, Carly watches from her front porch as the finely dressed ladies and gentlemen ride to the hounds. Later in the day, Carly finds out that a young hound named Hampton has become lost and Carly is determined to find him and by so doing endear herself to the hunt's Master; perhaps to be asked to ride Monroe in an upcoming meet. Carly enlists the help of her friend, Freddie, but the adventure is just beginning. Carly, Monroe, Hampton and the red fox have no idea what dangers await them.