 Terri Jentz and her friend Shayna Weiss (a pseudonym) are Yale students bicycling across America in 1977.On June 22, 1977, after stopping to camp at Cline Falls State Park in Oregon, they are brutally attacked when a man runs over the tent in which they are sleeping with a high-clearance pick-up truck and assaults them with an ax.Despite their injuries, both survive.