 Angela, a graduate student of American history and peace studies at UCLA, is introduced to a new way of thinking by three young friends. Searching for a new apartment for herself and her boyfriend, Kai, Angela stumbles upon a renovated house beside a mysterious field. She meets Chris, the building manager, and his buddies, Riley and Joey, who invite her to partake in "war games." Chris explains that the field site has remained uninhabited since a troubled Vietnam veteran occupied it years ago. The group sets out and soon learns about the nature of survival and conquest while confronted by the question, "What is the true cost of war?" Only their experience in "Field Day" can answer.