In the tumultuous summer of 1958, an inventor is tasked with a secret mission by MI5.
2 -Episode 2 51 min
Samuel meets two men from MI5 who are interested in his invention and is sworn to secrecy.
3 -Episode 3 51 min
Kathleen visits Sacha's school to see if she can glean any clues about Anthony.
4 -Episode 4 50 min
Samuel doesn't know who to believe - could he be meeting enemies of the state?
5 -Episode 5 51 min
After the shooting, Field places the Petruhkin home and factory under protection.
6 -Episode 6 50 min
Samuel learns the truth about the Shaws and the MI5 men.
Britain, 1958. Relations with Russia are charged with suspicion and fear. As a Russian émigré, businessman Samuel Petrukin is determined to integrate his young family into the establishment. But are his glamorous, upper-class new friends all they seem?