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.

Toby Stephens
Samuel Petrukhin

Keeley Hawes
Kathleen Shaw

Linus Roache
Richard Shaw

Mark Bonnar
Field

Lucy Cohu
Miriam Petrukhin

Claire Bloom
Aunt Mary

Lily Sacofsky
Hannah Petrukhin

Timothy Spall
Lord Arthur Wallington

Gary Beadle
Courtney Johnson
Sue Thomas: F.B.Eye71%
Code of Silence65%
Swagger77%
Danger Man74%
Prime Target68%
Quantum Leap69%
Debris70%
Under the Dome71%
The Pretender73%
Salvation65%
Tyler Perry's The Oval81%
Resurrection72%
Genius74%
John Doe72%
Murdoch Mysteries77%
Anne with an E86%
Lost in Space74%
The New Avengers71%
Frequency71%
Project Blue Book81%