The clever but poor farmer Klaus infuriates the rich big Klaus with his mischief. But little Klaus always manages to get out of the most difficult situations and emerge victorious in the end. But one day, big Klaus has a fit and wants to drown little Klaus. Now he once again has to rely on his intuition and his wit ...

Spain 1936: Despite the victory of the Popular Front, nothing has changed for the peasants; the grandees continue to oppress them. The poor peasant son Pablo fights back and encourages the others to demand their rights. The grandees flee. Students from Madrid arrive and help the rural population to democratize. Pablo falls in love with Magdalena and learns to read and write from her. When Franco begins his bloody attack on the young republic, they defend the village together. When Magdalena dies in a bombing raid by German planes, Pablo begins to hate the Germans. However, fighting together with the International Brigades, he realizes that there are other Germans too, and that they share a common enemy.