VIETNAM: ON THE FRONTLINES tells the story of the war as it happened, creating a personal and powerful portrait of the longest conflict America has ever been involved in. The four hours--America Enters the War, Tet in Saigon and Hue, Ringing Down the Curtain and The End Game--each focus on a pivotal chapter of the conflict, from Lyndon Johnson's decision to send in the troops to the final helicopter flight from the roof of the U.S. Embassy.