Alain Lefevre is a boxer paid by a Marseille mobster to take a dive. When he wins the fight he attempts to flee to America with the mobster’s girlfriend Katrina. This plan fails and he seeks escape by joining the foreign legion. As part of the legion he tangles with abusive lieutenant Steinkampf and bonds with legionnaires Luther, Mackintosh and Rosetti.

In Cold War Moscow, a female spy steals secrets from an idealistic politician – and falls in love with him. Moscow, 1959: Katya (Rebecca Ferguson, Mission Impossible- Rogue Nation, The Girl on the Train, The White Queen), is young, beautiful – and a spy for the Americans. When she and Mischa (Oliver Jackson-Cohen, Emerald City), begin spying on Alexander ( Sam Reid, Anonymous), an idealistic Communist politician, the last thing she expects is to fall in love with him. Her choice between love and duty leads to a nail-biting conclusion that Alexander (Charles Dance, The Imitation Game) can only unravel decades later in 1990s New York. His journey back to the snowbound streets of Moscow uncovers a love triangle and betrayals from those he trusted most.