In 1950s Moscow, communist Katya secretly spies for the Americans in the Cold War arms race. When she lands her biggest assignment, stealing secrets from rising government star Alexander, the last thing she expects is to fall in love with him. Reconciling her passion for him with her beliefs about communism means making the greatest sacrifice - of her life - a sacrifice that Alexander only uncovers thirty years later.

Dying of brain cancer, a dangerous international spy is determined to give up his high stakes life to finally build a closer relationship with his estranged wife and daughter, whom he's previously kept at arm's length to keep out of danger; but first, he must complete one last mission - even if it means juggling the two toughest assignments yet: hunt down the world's most ruthless terrorist and look after his teenage daughter for the first time in ten years while his wife is out of town.