Jimmy Hoffa was one of the most powerful men in America. In 1974 he disappeared, never been seen again: one of the greatest mysteries of the 20th century.
Historic footage and leading voices of the era examine the "Bobby Phenomenon" of the 1960s and the legacy of the man who helped redefine the country.
Filmmaker Rory Kennedy interviews her mother, Ethel Kennedy, who discusses family, marriage and politics.
