Story is based on the true story of Greville Wynne, a British businessman who helped the CIA penetrate the Soviet nuclear program during the Cold War. Wynne and his Russian source, Oleg Penkovsky, provided the crucial intelligence that ended the Cuban Missile Crisis.
Written by Steven Knight (Locke), the film follows a reporter (Gyllenhaal) who travels to Rio de Janeiro to visit a wealthy friend (Cumberbatch), only to get roped into a plot to fake his friend’s death.
A British sportsman sets out to assassinate a European dictator, but when he’s caught, he is tortured, thrown off of a cliff, and left for dead. What follows is a survivalist thriller through which the sportsman must evade enemy agents as he escapes back home to England through the countryside.