At Tu Du Hospital in Saigon, babies in a special unit have enlarged heads or are missing limbs. Pham Thi Thuy Linh, born without arms, writes with her feet. A boy with a shrunken leg careens around the corridor in a wheelchair. Thirty years after the end of the Vietnam War, they are among several million victims of Agent Orange. We meet four of the victims, plaintiffs in a class action suit against 32 US chemical companies.

Vietnamese victims are seeking compensation and justice. The question is were these dioxin-laden herbicides chemical weapons? And if so, who should be held accountable in the wake of the largest chemical warfare operation in history?