Examines the critical events that took place in the fall of 1967, from the ambush of an American battalion by the Viet Cong that led to skepticism of whether the Vietnamese conflict was winnable, to the first violent anti-war demonstration on a campus in Wisconsin.

Based on the book "They marched into sunlight" by David Maraniss. Originally produced for television broadcast on the PBS program American Experience. Special features: "Black lions return"--Survivors reunite decades later ; "Where are they now?" ; "The flag"- eyewitnesses discuss what the American flag means to them. Produced for the television series The American Experience. Based on David Maraniss's book, "They marched into sunlight."