When Lucky, a young society girl, moves to the West to join her estranged father, she starts a new chapter in her life as she makes new friends, and forms an unbreakable bond with a wild stallion she names Spirit. Together, the girls and their horses undertake the adventure of a lifetime when they must save the stallion’s herd from a gang of horse wranglers, proving to themselves to be true Western heroes.

As a wild stallion travels across the frontiers of the Old West, he befriends a young human and finds true love with a mare.