Gus Barrington has been a long-haul trucker for almost thirty years. On a dark, rainy night in July, he's in his Freightliner semi hauling a load of lettuce along I-10 outside of Jennings, Louisiana. Through the mist coming off the tires of the eighteen-wheeler in front of him, his headlights catch something along the side of the interstate. It's the body of a fifteen-year-old girl, and she's been beaten badly. Gus doesn't know it, but his life is about to change forever.

The girl's name is Abby, and she tells Gus that her mom and four members of the family they've been living with have just been killed. Abby is alone in the world, and Gus decides to take her under his wing until he can find a permanent solution to her living situation. In doing so, he discovers that Abby is the only witness to the murders, and the killers are trying to take her out to prevent her from identifying them.

Follow the action across thousands of miles of highways and truck stops as Gus tries to extricate Abby from a deadly situation.