Herman Wallace, Albert Woodfox and Robert King spent almost a century between them in solitary confinement in Angola, the Louisiana State Penitentiary. They have become known as the Angola Three. In 1972, prison officials charged Wallace and Woodfox with the murder of a prison guard, Brent Miller. King, 150 miles from the scene of the crime, was identified as a 'conspirator'; in 1972, he was accused of the murder of a fellow inmate. With no physical evidence or credible witness testimony, the three men were convicted by all-white juries, sentenced to life imprisonment, and placed in solitary confinement. Their cells measured 9ft by 6ft. It is widely believed they were targeted not only to silence their protests, but also because of their involvement with the Black Panthers.After judicial reviews, Robert King was freed in 2001; in March 2008, Herman and Albert were moved to a maximum security dormitory, where they remain incarcerated despite having had their convictions overturned. In the Land of the Free tells the shocking and ongoing story of these extraordinary men. Directed by Vadim Jean and narrated by Samuel L. Jackson, this documentary features interviews with Robert King, Albert Woodfox and Herman Wallace, and talks to attorneys and others involved with the cases - including the widow of Brent Miller, who believes the men are innocent of her husband's murder.