Eight space cargo-ships disappear without a trace within three days, and the orbit station "Margot" has suddenly fallen silent. It’s down to science officer Maria Scholl to find out what happened to them.

Warsaw 1831: The young music student Frédéric Chopin falls in love with the singer Constantia. When his professor learns that Polish revolutionaries want to persuade Chopin to take part in their uprising, he and Constantia hatch a plan to keep Chopin away from the revolution: Constantia pretends that she no longer loves him, so that Chopin accepts an offer to go to a concert in Paris. There, however, he meets the famous writer George Sand and falls in love with her.

The Italian mountaineer Carel wants to be the first man to stand on the top of the Matterhorn. Since the climb is very difficult, he agrees to try it together with the British mountaineer Whymper. But due to an intrigue this agreement is dropped and the two man try it on the same day with two different teams and then disaster strikes.

The military officer Manfred von der Lohe has just been on a training course in the USA. During atomic bomb tests there, he was radioactively contaminated and has been incurably ill ever since. In order not to endanger the planned nuclear armament of the Bundeswehr and the economic interests involved, von der Lohe and his wife Eleonore are to disappear. But the couple turns to Professor Soltau, an anti-nuclear activist. Their goal is to inform the public about the danger …

In the late summer of 1958, party secretary Ernst Wollni is sent from Berlin to the village of Schwarzwalde to help set up an agricultural cooperative. In the village he meets his childhood friend Fritz Grimmberger again. Their friendship is put to the test as Grimmberger opposes collectivization. Nevertheless, Wollni manages to motivate the villagers and get the LPG going. Grimmberger, however, ruins himself by going it alone. When his daughter Helga also wants to leave him and study in the city, he realizes his mistake. Grimmberger and Wollni reconcile at the village festival.

Young Kuttel belongs to a group of working-class children who live in Berlin at the beginning of the 1930s. In the big summer holidays in 1931, the children want to make a race with their model boats and choose as a venue for the small artificial water in the park of their neighborhood. All children in the area are invited to participate in the competition. But there is a traitor among them, who tells the company to the local police officers, who in any case look with arrogance on the "Reds"...

At the beginning of the 1960s, a German turns up on behalf of the NATO in the British village of Rocksmouth. NATO wants to establish a naval base in Rocksmouth, but first, the German envoy has to salvage an old ship wreck. In 1942, the "Princess of India" was supposed to bring children to safety in Canada but was sunk by a German submarine at departure. 58 people were killed, most of them children.

As American settlers encroach on the lands of the Lakota people, Tokei-ihto witnesses the murder of his father at the hands of Red Fox, who wanted information on where the tribe finds its gold. Two years later, at the height of the Great Sioux War, Tokei-ihto and Red Fox meet again.

Based on an authentic case from the 1920s. The head country constable Heinz Lippert arrests the Polish farm worker Jakubowski on suspicion of murdering a child - his adopted son. Although he has insufficient evidence, public prosecutor Becker takes the case to court. Jakubowski is sentenced to death, the "Polish murderer" fits in with the propaganda of the time. Lippert, encouraged by the communist editor Hartmann, tries to prevent the sentence from being carried out and even investigates the real perpetrator. In vain, the death sentence was carried out prematurely. After the Nazis seized power, the public prosecutor, now an SS leader, had the men who had uncovered the true facts arrested. Lippert joins the underground resistance.