Phu Bai: A Vietnam War Story It is June 1967, and United States military involvement in South Vietnam is nearing its zenith. As the war rachets up, John Murphy and Charles Van Dyck of the Army's Criminal Investigation Division investigate the murder of an American soldier at Phu Bai. War intrudes as the two investigators build their case against the most likely suspect. But a bizarre twist turns it into an unusual manhunt in the middle of a war zone.