After years of allegations and suspicion, those accused of unamerican political beliefs are driven from the movie industry. Mitzi Trumbo recalls visiting her father Dalton in prison. Host Oona Chaplin speaks to some of those whose careers were ruined and friendships fractured as anti communist fervour pushed witnesses to expose the names of alleged communists. Norma Barzman describes this as a period of political exile. Charlie Chaplin faces FBI interrogators who let him know he’s not welcome in the USA anymore.