Join the Wilson sisters on their wildest adventure yet, this time in the cowboy country of the Wild West. Follow their adventures as their best-laid plans are set aside and they set off into the unknown, taking wild horses on a 5000-kilometre trip through cowboy country. From the Wild Horse Corrals in Idaho, via snowstorms in Wyoming and a prison in Northern Nevada, right through to the diverse beauty of Utah and the rugged mountains of Montana, this is the story of five girls who set off on a journey like no other. A journey of adventure, self-discovery, heartbreak and success as they take on their most exciting and eventful challenge yet … taming wild Mustangs in the American wilderness.