The stubborn old skipper Heinrich Borchert refuses to recognize the progress of the new era. Sailing for the DSU is out of the question for him. He is a private ship owner - and will remain so! In order to pay off the mortgage on his barge "Marie", he takes more cargo on board than is reasonable and risks a dangerous draught in the shallow waters of the Havel. Neither his friend Hermann Vollbeck, also an old bargeman but sailing for the DSU, nor the protests of his son Karl can dissuade him. After all, Borchert is only doing all this for Karl, who is supposed to take over the boat one day and have a better life. He, on the other hand, has other ideas about life. Instead of just being a slave to the ship or having to deal with debts, he wants to have time for more enjoyable things alongside his work.

Having been happily married for ten years, Gerda Wagner, devoted mother and housewife, suddenly gets it into her head that she would like a career as a pop star. She had singing lessons in the past and her voice is still beautiful. A chance meeting with the idolized Italian singer Fabiani, revives her stage fever - much to the annoyance of her husband Gustl Wagner, head of the records section at a department store.

In a casino in a We'5t German health resort, one often sees Sybille - an attractive young student actress. With her winnings from the roulette table, she attempts to finance her studies. Despite a rather lucky streak, her winnings are a little on the lean side. She doesn't, however, gamble with her own money but with that of Dr. Busch, a lawyer, who likes to stay in the background with the argument that gambling houses are not the proper turf for a serious lawyer. From him, Sybille receives only a small share of her winnings later, and only through the intervention of Gerhard Fischer, a journalist, does Sybille come to realize her role in Dr. Busch's fraudulent scheme.

The soccer team of the company sports association "BSG Hartenfels" is going downhill. New training methods - based on scientific findings - are needed, says Paul Schmidt. But he runs up against the star striker Wieland, whose friends naturally stick by him. So water sportswoman Ruth, deputy chairwoman of the BSG, decides to use female cunning to change the situation for the better. She and her friends Lilo and Uschi want to "work" the unruly ones. In the end, there is indeed a victory - on the sports field - and two happy couples.