Reporter voiceover describes massive FBI raid on Mississippi farmhouse for persons wanted in a $1.6 million robbery of Brink’s in New York and the arrest on site of a robbery suspect Cynthia Boston associated with Republic of New Africa movement. Footage of FBI agents and officials outside small house, examining evidence on a roadside, female suspect in handcuffs escorted to car and driven away. Reporter describes investigation exploring links between radical groups and Brink’s robbery. Photo of Black Liberation Army leader Joanne Chesimard.