Magdalena and Michael have loved each other since they were children. But when the Nazis come to power, Michael rebels against the regime and is sentenced to fifteen years in a concentration camp. Magdalena, meanwhile, goes underground with the help of a friend and later immigrates to the Soviet Union. Michael, who has joined the Red Army, discovers on the way to Moscow that Magdalena is staying there. But when his plane lands, she is already on her way back to Germany. Michael hopes that one day, he and Magdalena will be reunited.
Hannes comes forward with a suggestion on how to make his brigade more efficient. Due to his success, he and all of his colleagues are granted a special leave. They decide to spend their free time in a holiday home. Hannes, however, does not join them. Instead, he pretends that he has to help his wife Irma with the installation of a machine for the agricultural cooperative. While Irma thinks that he spends his holiday with the brigade, Hannes goes on a road trip with the young and pretty Monika who has no idea that he is married.
It is the year 1936 and the Spanish Civil War is raging. When the German commander of an international brigade is badly wounded he gives his five comrades a message which he divides up and secretes into in five cartridges. All five shells must reach the battalion in order for the message to be relayed. But Frenchman Pierre can’t bear the heat of the Sierra. When he leaves their hide-out to drink from a well he is hit by an enemy bullet.
At the end of the 1950s, the production of optics in the German Democratic Republic has reached top quality and instigates interest in the West. When national demand rises strongly and at the same time the export to South America heavily decreases, the Volkspolizei - the GDR police force - starts to look into the case. Two seemingly unrelated cases are the starting point for the investigation by second lieutenant Schellenberg of the department for optics racketeering: An old woman who was arrested in the Berlin city railway for trying to smuggle a pair of binoculars to West Berlin, and a dead person in an area of allotments who was involved in obscure dealings with optical devices.
A car factory in the GDR. During a test ride there is a major accident. One driver is dead, another is seriously injured. The investigation reveals: sabotage.
