While on a project outing in an abandoned military zone, five college students accidentally release a long kept secret weapon with a nightmarish purpose.

Jennifer and Ryan are students at UC Berkeley, acquaintances off and on since early adolescence. She's quick, witty, ironic, literary, and independent; he's deliberate, literal, serious, studying structural engineering, always working on a plan. They take walks, they console each other over break-ups, he shares his plans. She's headed for Italy after graduation. Then, to their equal surprise, they spend a night together. Her response is to skitter away from continued intimacy and want to stay friends; he's hurt by her response, so he withdraws. Can it all get sorted out before she leaves town?