Guerrilla forces overtake a field hospital in French Indochina, kidnapping doctors Richter (Ken Scott) and Minelle (John Morley), as well as several nurses. Leading the captives into the jungle, guerrilla Chen Pamok (Neville Brand) forces the doctors to operate on elderly warlord Gung Sa (Benson Fong) and enslaves the women. After a firefight, nurses Athena Roberts (Dolores Michaels) and Joy Brooks (Patricia Owens) and nun Maria Phillips (Shirley Knight) try to lead the survivors to safety.