"El Laberinto". Walter Schellenberg, Hitler's Chief of Counterintelligence, recalls some events happened in 1940, while Europe lay under the shadow of the Second World War. Spain remained on the margins of the conflict, but under constant pressure from both the Allies and Nazi Germany because of its Geo-strategic importance. The Spanish administration had to tread a fine line between the opposing powers. This film [for the first time] tells the story of some of the key secret operations that helped Spain maintain its position, and decisively influenced the course of the war, and reveals the people behind them.