Covert CIA agent Martian is ordered to abandon his undercover life and return to London Station. When the love he left behind unexpectedly reappears, their romance reignites, pitting his career, his real identity and his mission against his heart while hurling them both into a deadly game of international intrigue and espionage.
Martian finds a needle in a haystack and confronts Sami about London.
Henry and Martian run diplomatic interference. Danny walks a tightrope.
Henry sends Owen to Minsk in a hunt for clues. Martian sets a rat trap.
Martian scrambles to unravel Cossack's game. Osman plays his hand.
Bosko is briefed on Valhalla. Martian, Henry and Naomi strategize a play.
Martian's approach doesn't go to plan. Sami makes a startling confession.
Martian buys time with a bluff to Langley. Danny crosses the Rubicon.
Bosko shares a grim truth. Martian makes a devil's bargain.
Michael Fassbender
Brandon 'Martian' Colby / Paul Lewis
Jeffrey Wright
Henry Ogletree
Jodie Turner-Smith
Dr Samia 'Sami' Zahir
Katherine Waterston
Naomi Ford
Harriet Sansom Harris
Dr Rachel Blake
John Magaro
Owen Lublin
Saura Lightfoot-Leon
Daniela 'Danny' Ruiz Morata
India Fowler
Poppy Cunningham
Andrew Brooke
Grandpa
Christian Ochoa Lavernia
Grandma
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