Irene Klaussen, a brilliant, tomboyish Berlin student, falls for new classmate Peter Lemke. To prove herself, she follows him, first to a school dance in a borrowed gown, then to a year’s stint on a remote oil‐plant construction in Granow. Ostracized at first, she wins respect under FDJ secretary Anton by mastering every trade and helping him study for engineering school. After returning to Berlin, she discovers Peter’s infidelity and, disillusioned, goes back to Granow, finding true partnership and purpose with Anton.

Mauritius Halbermann, nicknamed "Mauts", works as an advertising manager for Gravo-Druck, a state-owned print company. Mauts, a man obsessed with his work, incessantly percolates with marvelous ideas - and now that he has once again come up with another brilliant idea, he naturally wants to present his proposal to his boss. As it happens, his supervisor along with his entire family and some of Mauts's colleagues - including Lore who Mauts secretly fancies - have gone on a holiday trip.

On a pasture in a small village stand the cows and calves of the herder Bürle. Since many years, there is also a wooden calve standing among them. One day, all calves are stolen, even the wooden one. Although they are innocent, all poor villagers are brought to trial. Thereupon, the farmers join forces and discover who really is responsible for the theft.

Co-pilot Horst Schubert is a braggart and a true Don Juan. Thus, he tells young Ilse that he is in fact an "aircraft commander". This assertion brings about an embarrassing situation, for he suddenly meets her onboard his new work place, an IL-14 charter plane where Ilse acts as a stewardess. It gets worse, however: During a stop in Varna the police appear because Horst’s former lover Madelon has vanished. At home, meanwhile, his landlady has her hands full with her lodger’s current and former playmates. Ilse decides to put an end to this mixup and since the dull captain of the plane, Richard, makes no move to confront his co-pilot about his unstable private life, the smart stewardess appeals to the rest of the crew to help her teach Horst a few lessons in love.