Born into a well-off family, Franz Blum had led a carefree youth until, some time after graduating from high school, he was arrested by the police. For, involved by a gang of bad boys, the young man had taken part in a bank robbery. A "heroic deed" which earned him six years in prison. Once behind bars, he was treated with ruthless inhumanity by the guards. And little by little - but inexorably - Franz turned into an insurgent...
Kummerow, a village in North East Germany, around 1900: Mean-spirited miller Düker wants to drive cowherd Krischan out of the village. Being popular with the local children, Krischan can rely on the help of schoolboys Martin and Johannes and their friends, who try to prevent the miller's plans by playing pranks on him.
An elaborate bank robbery takes place and the gangsters succeed although the FBI had been warned. Jerry Cotton, who is considered accountable for this major failure, loses his badge over this. Being the man he is, Cotton doesn't let the evil-doers forget that he has unfinished business with them.