The Vietnam War is recalled via Dick Cavett's contemporaneous late-night talk show and such guests as Warren Beatty, Jane Fonda, Groucho Marx and Paul Newman; Barry Goldwater, Wayne Morse, Edmund Muskie and Hubert Humphrey; and Muhammad Ali. The documentary also includes new insights from Cavett, Gen. Wesley K. Clark (USA Ret.), author Fredrik Logevall ("Embers of War") and historian Timothy Naftali; and an archival performance of "Volunteers" by Jefferson Airplane.