Seventh-grader Abby Lovitt grows up on her family's California horse ranch in the 1960s, learning to train the horses her father sells and trying to reconcile her strict religious upbringing with her own ideas about life.

In 1960s California, eighth-grader Abby Lovitt has trouble with True Blue, the newest horse on her family's ranch, a beautiful dappled gray who is so often spooked, Abby wonders if he is haunted by the ghost of his deceased former owner.