Brody McQuaids only sense of purpose comes from saving the wild horses that roam South Park. Savannah Marshall is a veterinarian on her family's Colorado ranch. She longs to keep her father happy following the tragic death of her older brother, including marrying a man of his choosing. She gets cold feet a day before her wedding and disappears to South Park where Brody is. As she learns more about the destruction of the horses, she joins Brody in an attempt to save the wild creatures.