The year is 1974, and Barbara Dean (Judi Dench), a British assistant manager in a foreign bank in Saigon, begins a relationship with American Bob Chesneau (Frederic Forrest). She quickly realises that he works for the CIA and he knows that the fall of South Vietnam is very near.

A group of working-class friends decide to enlist in the Army during the Vietnam War and finds it to be hellish chaos -- not the noble venture they imagined. Before they left, Steven married his pregnant girlfriend -- and Michael and Nick were in love with the same woman. But all three are different men upon their return.