Subject: Point Alpha

Warrant officer Anna Chambers is captured outside a top secret bunker near observation post 'Point Alpha' in Germany during the most tense time of the Cold War. As her interrogation begins it is believed that she's a double agent who has infiltrated the establishment. But, she is actually a mule who carries psychological information buried deep within her memory. This info is about Britain's nuclear deterrent action plans, which are called 'The Letters of Last Resort'. It is revealed that she can speak fluent Russian, an ability she didn't have a few days earlier. Her insight of tactical military information alarms all who are present.