When it comes to the intelligence department of modern Germany, people immediately think of the "Galen Intelligence Team" of West Germany, which competed with the Soviet KGB repeatedly during the Cold War. In 1956, the German government established the Federal Intelligence Agency (BND) on the basis of "Galen Participating Intelligence Team", and it has continued to this day. The headquarters of BND is located in a big yard in Prach Town, the southern suburb of Munich. It is close to the Sueside Railway Bridge, and there are about 2 old office buildings and simple warehouses with 2-3 floors. The house is surrounded by a cement wall with a length of 2, meters and a height of 3 meters.

BND is a very strict organization. It has set up four levels of institutions under the highest head: bureau, department, branch and group. One of them is responsible for collecting and analyzing the intelligence of neighboring countries. Bureau 2 is responsible for formulating preventive measures against Russian spy infiltration, and also plays the role of organizational department; Bureau 3 is responsible for collecting and studying domestic intelligence and monitoring the activities of international terrorist organizations in Germany. All the subsidiaries outside BND's headquarters pretend to be commercial companies. These companies "sell dog meat by hanging sheep's heads" and actually don't do business at all.

BND requires every staff member to live a secret life all his life, even if he leaves the organization, he should keep it a secret. Every morning, BND staff come to work by the bureau shuttle bus. They rarely take the bus to avoid contact with outsiders on the bus. Sometimes the bus will bring parents and children, all of whom are BND staff. BND headquarters has a very strict atmosphere of secret activities, except that the recipes in the canteen are open, everything is confidential.