Todd Acosta, his girlfriend Sarah Fletcher, and their new carpooling friends Jodi, Keren, Jeff, and Eric become stranded on a remote country road when their SUV suffers a tire blowout.
The unseen sniper shoots Sarah next, prompting Eric to take cover behind a tree stump while Jodi, Keren, and Todd hide behind the vehicle.
Keren uses her hoodie to create a distraction while Todd, who is additionally suffering from a slug lodged in his arm, unsuccessfully attempts to put the SUV in neutral so it can be moved for rolling cover.
During a quiet moment, Todd tells Jodi and Keren that his girlfriend Sarah was pregnant, but lost their baby.
At the wheel, the woman loses control and flips the car, ejecting her daughter in the backseat through a window.
Before the women can make a break for it however, a sheriff arrives at the scene with a deputy and two police marksmen.
Jodi hits the tree where the sniper is perched, knocking him to the ground after he cuts himself free from tangled rope.
When the gun jams, Jodi uses the stock end of the rifle to repeatedly bash the sniper to death.
However, Jodi notices tally marks on the rifle enumerating his victims, including her five fallen friends, and becomes enraged; in a bleak ending, her final useless strike causes the gun to fire a bullet that tears through her throat, killing her.