Season 1 poster

Season 1

(2022)

Cast

Hannah Khalique-Brown as Saara Parvan
Hannah Khalique-Brown

as Saara Parvan

Simon Pegg as Danny Patrick
Simon Pegg

as Danny Patrick

Maisie Richardson-Sellers as Kathy Freeman
Maisie Richardson-Sellers

as Kathy Freeman

Edward Holcroft as James Cox
Edward Holcroft

as James Cox

Adrian Lester as PM Andrew Makinde
Adrian Lester

as PM Andrew Makinde

Alex Jennings as David Neal
Alex Jennings

as David Neal

Hattie Morahan as Elizabeth Kahn
Hattie Morahan

as Elizabeth Kahn

Ed Stoppard as Richard Marston
Ed Stoppard

as Richard Marston

Episodes

Episode 1 poster

Episode 1 7.5

June 30, 2022

A young intern's first day at GCHQ coincides with a major cyberattack on the UK. To win her superiors' trust, she break…

Episode 2 poster

Episode 2 7.5

July 7, 2022

Saara befriends John, a veteran GCHQ staffer, and seeks help from Gabriel in decrypting a message in the virus. Danny s…

Episode 3 poster

Episode 3 5.5

July 14, 2022

Vadim returns to Russia where his allegiances are tested, leading him to a risky stunt.

Episode 4 poster

Episode 4 7.0

July 21, 2022

With Saara in a difficult position, a revelation forces her hand. Marina moves to London.

Episode 5 poster

Episode 5 7.0

July 28, 2022

Signs of irregularity in the UK general election result prompt political unrest, and the nation's relationship with its…

Episode 6 poster

Episode 6 7.5

August 4, 2022

As the true extent of Russia's interference with the UK becomes clear, Saara and her former classmate join forces. Can …