Kathleen visits the boarding house in search of Anthony, but has no luck. Armstrong explains to Samuel that they have reason to believe that people connected with the Shaw family could be enemies of the state. Not knowing who to believe, Samuel confronts Mr Field.
Samuel, a Russian-born Jewish inventor who specialises in the development of hearing aids, is tasked with a secret mission by MI5 to use his technological expertise to contribute to western Cold War efforts. Following the tensions of the space race and the first hydrogen bomb test, Samuel's efforts factor in to the emergence of the modern world.
Summer of Rockets - Series 1, Episode 4 Synopsis and Schedule