Who would send their fourteen-year-old daughter to a summer camp that preached sexual abstinence and taught various methods of birth control? Kathy's parents, that's who. Kathy is fine with abstinence, and she is not interested in learning how to roll a condom onto a penis. But by sending their daughter to summer camp her parents saved her life. Still, life looks bleak with no adults around. Can she and the other forty-seven teenagers survive the mysterious brown fog that has covered the Earth below them? What will they eat? Where will they shelter? It's a dangerous new world, and it will take leadership and community to survive the fog.