Lisbon, 1940´s, In Europe, World War II in on its way to achieve its peak. Some of the most vital decisions are about to take place. Lisbon, as the capital of a neutral country, geographically positioned in a place of utmost importance, is at the heart of where such decisions will be made. This old city is boiling with activity: thousands arrive every day. At the same time, hundreds of spies gather, in a dangerous game.