Robbie’s dad has always been hard on Robbie and his brothers, but when their mom dies on Robbie’s sixteenth birthday, he becomes downright abusive. Robbie doesn't understand why his dad is so mean to him or why his brothers resent him for their mom's accident, but he desperately tries to hide the bruises. On top of that, after his dad's horse training jobs run out, he moves them to Colorado to their uncle's ranch in the mountains.
At Uncle Caleb's cabin, Robbie meets Sam, a boy whose family also lives on the property. Finally he has a real friend who shares his love of horses, but Sam is black and openly gay. Both traits incur Robbie’s father’s rage. When his dad attacks Robbie in front of Uncle Caleb for standing up for Sam and himself, all of their secrets are thrown out into the open, and Robbie's life is changed forever.