Post-war Germany 1945: Two rival gangs of uprooted boys fight each other in the ruins of Berlin, whose business is the black market out of necessity in order to survive. Their respective leaders are Gerhard and Dietrich. A pretty young circus artist named Corona comes to the destroyed city with a traveling circus. She immediately caught the boys' attention. When the latter notice that the circus director is abusing the girl, the two gangs join forces and plot an act of revenge against the tyrant. But with the hustle and bustle caused by this, Corona falls from the trapeze and is seriously injured. When the circus moves on, the boys organize a doctor for the sick artist who has been left behind. Their collectively concern for the blonde beauty makes them forget their enmity. This welds the troops closer together and sets the course for a common, meaningful future.

Berlin, shortly after World War II. Five parentless siblings, led by the oldest sister Inge Kuckert, search for a place to stay and a basis of existence in the destroyed city. A bombed villa in the Grunewald seems to be the right "cuckoo's nest", but an alleged authorised disposal tries to drive the siblings out of the building. Fortunately, the friendly neighbor can help.

The friends Jochen and Gerd both work at the fashion boutique "Saxonia", which has only recently designed a new collection. Therefore, Jochen and Gerd are shocked when they meet two young ladies during their well-deserved holiday who are already dressed in two of the new pieces. And as if that was not enough, they pass the creations off as their own, even though they are employed at the competing company "Berolina". Naturally, the two men refuse to let the matter rest, although they do not actually want to raise a quarrel with the pretty ladies. After some turbulent entanglements they become aware of the foolishness of their squabbling and, eventually, the four of them present the disputed designs as a co-production at the fashion fair in Leipzig.

Students raised under Nazi ideology witness the disintegration of the Third Reich and the realization of those who indoctrinated them that they were wrong.

Several children find out what's the matter with a wreck offshore, which puts them into jeopardy.