Season 1
Undercover CIA agent Martian is ordered to return to London. When the woman he left behind suddenly reappears, their love is rekindled, entangling them in a deadly game of intrigue and international espionage.
Episodes
Covert CIA agent Martian is called back to London Station.
A spooked source threatens to put an operation at risk.
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.
More seasons
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