Otto John, the resistance fighter and Nazi hunter - in the young Federal Republic he is still considered a traitor by many conservatives, military and secret service officials. And he will confirm this image for many in the course of 1954. 

The documentation for the series "Bonn - Alte Freunde, neue Feinde" tells the true story of Otto John, who went from resistance fighter to President of the Office for the Protection of the Constitution, and of Reinhard Gehlen, Major General of the Wehrmacht, who set up the foreign intelligence service "Organization Gehlen".