This history documentary investigates the story behind the Vietnam War. The series begins with Vietnam's early history from the invasions, three years of B-52 raids, Operation Thunder and the My Lai massacre. French colonialism, Japan's invasion in WWII and the rise of communism led by Ho Chi Minh all played a significant part in the events of the war. It wasn't until America withdrew from Saigon on April 30, 1975 that the war ended, after a series of anti-war demonstrations and the assassinations of Martin Luther King Jr. and Robert Kennedy.