East German film about the history of Red Orchestra, a real life German pro-Soviet spy ring created after the rise of Hitler that turned into a resistance movement led by a leftist Nazi officer, Harro Schulze-Boysen, and Arvid Harnack.
Dr. Wagner is a scientist currently working on an experiment for the Asta plant in East Berlin. If the experiment is successful its a brilliant new invention. But Wagner is the target of sabotage, and all the decisive experiment fails. Wagner can not explain this setback.
