When Prince Vain got his shirt fixed, he proclaims that he had slain two lizards in front of the tailor's house - "two in one strike". When the tailor swats seven flies at once, he sows himself a banner saying "seven in one strike", and together with his bird he starts a journey into the world to pronounce his deed.

After Jochen saves police officer Erich's life, the two men become close friends and Erich helps Jochen get a job working for Berlin's local train system. But Jochen falls into the hands of the beautiful West Berlin agent Ellen, who convinces him to participate in acts of sabotage against the trains. All of a sudden, Jochen is making a lot more money and even Erich's former girlfriend Inge becomes interested in him. But everything begins to unravel when Erich observes his friend's illegal activity on one of his nightly rounds.

During the Thirty Years' War, Christine, an orphan, falls in love with the colonel Count Merian. In order to always be with him, she puts on men's clothes, becomes a troop boy and later even a cornet - only the sutler knows her secret. Little by little, Christine realizes that the man she loves has been brutalized by the war and is no longer capable of true feelings. When she gives herself to him instead of a peasant maid, she is horrified by his brutality. She shoots him in a duel. She is sentenced to death as a cornet, but acquitted as a woman.

Young, pretty Milli is passionate about winter sports, and of all things, she wins a vacation trip to the Baltic Sea at her company - in summer, of course. After her first dip in the sea and meeting a nice young man, her initial displeasure fades. But not for long, because Robby turns out to be a filou, shuns regular work and is also a womanizer. After some confusion, Milli's vacation ends well after all. She goes home with Robby, who wants to take a job as a car mechanic in her home town of Suhl.

GDR and West Berlin in the 1950s. Hans Nettermann, a designer at the "Komet" bicycle factory, is a favorite of the BSG road riders. His dream is to one day ride in a stand-up race. A construction error throws him back in the road race. They work for a long time to fix it. Then he is persuaded to go to West Berlin to become a professional rider. Although he makes it to the top class, he also learns about the scams in professional sport. He marries Marianne, who has followed him and tries to persuade him to return to the GDR, which he eventually does. After some difficulties at work, he is nominated for the first amateur endurance race in the GDR and wins.