 An agent is sent to recover part of a code that would lead to secret information gathered during the war by Nazi Secret Service leader Canaris. He would have to parachute himself and then initiate contact with his liaison person in the Carpathian Mountains. He would have to join a resistance group who were fighting against the communist regime and help them get out of the country. The Romanian secret service intervenes and sends an agent to counterspy. The plan was to evacuate the rebels using a bus. And the action begins.