Transcription: The Soviet army has entered East Prussia. The end of the Third Reich seems to be imminent. Suddenly a secret teletype casts a dark shadow over the confident Allied command. Detailed technical plans of Fat Man, the first nuclear bomb developed in the Manhattan Project, have been stolen by a Nazi spy and led across the Atlantic to the Gundelfingen Castle north of Freiburg. From there there they will be taken to an underground secret base somewhere in the Carpathians, where a German atom bomb is in the final stages of development.