Was ist denn bloß mit Willi los?

Summer in Germany, anno 1970. Italy is the number one destination. As every year, swarms of Teutonic tourists make their way to the Adriatic Sea. Only Willi Hirsekorn from Castrop-Rauxel has so far no plans to break south. That changes, however, as the bitchy neighbor Mizzi Buntje proudly tells of their upcoming holiday in Italy. Willi can not afford this boasting. Shortly determined, the bags are packed, and already rushes Willi in the car with his wife Sieglinde, daughter Lotti and son Kuno the sun.

Retired tax official Willi Winzig spends his retirement happily and contentedly in his home. However, this changes when his sister Heidelinde, her daughter and his father want to move in with him, and as Willi is a good-natured man, he takes them in, but because they have no money and his pension is not enough for all four of them, he has to take on a new job. He gets a job as a salesman for household appliances, but his good nature gets in the way again.

King Frederick II and his leading advisors hesitate too long in the eyes of some officers, so Major von Schill decides to strike out on his own. He hoped that his brave move would be the catalyst for the great war of liberation. But von Schill's troops were soon defeated by a superior force of Dutch-Danish troops. The king takes a public stand against von Schill's actions and eleven of his officers are shot by summary execution on Napoleon's orders. However, one of them, Lieutenant Heinrich von Wedell, escapes death and is sentenced to forced labor for life. When Wedell's brother Karl, who opposed von Schill's unauthorized actions, learns of Heinrich's fate, he decides to help him in a risky way...

Fifth Jerry Cotton Movie. A rich capitalist is blackmailed and threatened with the murder of his daughter.

A poor orphan boy runs away from the children's home and sets up his lonely fatherly friend with his youth welfare officer. As a result, nothing stands in the way of our hero's adoption.

The 13-year-old Ludwig is to have for every joke. At boarding school he cuts his stern teacher, Captain a. D. Semmelmaier, during the nap from the beard. The angry pedagogue then sends the spoiled flail back to his beloved Bavarian village. The long-suffering mother persuades the rector to resume her reforming boy at the Latin school. Everything seems to be working out for the better, but the upcoming marriage of his sister Ännchen with the Berlin beer brewer Karl Schultheiss presents Ludwig with new challenges.

Car salesman Mark sails down the Rhine to Amsterdam in an old barge with his friend Ulli and a girl named Elke. During his shore leave, Mark repeatedly encounters the pretty tour guide Petra, who is traveling to the same destination with a busload of tourists. The two fall in love.

Leopold, head waiter at the "Weißen Rössl" (White Horse Inn), is secretly in love with the owner of the restaurant, Josepha. But she's only interested in the lawyer Dr. Siedler. Jealous, Leopold comes up with a plan to gain Josepha's attention.

Retired tax official Willi Winzig spends his retirement happily and contentedly in his home. However, this changes when his sister Heidelinde, her daughter and his father want to move in with him, and as Willi is a good-natured man, he takes them in, but because they have no money and his pension is not enough for all four of them, he has to take on a new job. He gets a job as a salesman for household appliances, but his good nature gets in the way again.

In Monte Carlo, a captain tries to raise the money to pay his crew at the gaming table, and meets and falls in love with a Queen.

The kind-hearted but slightly awkward Dr. Eduard Frank is transferred to a girls' boarding school in Carinthia. He soon finds out that his upper class consists of a bunch of cheeky rebels led by the bright Princess Margret. With their pranks, the girls bring poor Dr. Frank to the brink of despair. He cannot expect any help from the spinsters' teaching staff. The only one that Dr. Frank keeps at the boarding school is the courageous sports teacher Angelika. When Margret notices this sympathy, she fakes a fiery love exchange between the two...

Pepe Nietnagel and his fellow students of the Mommsen school come up with all kinds of ideas to get out of doing any actual school work. This includes simulating suicides, setting off the air-raid sirens and abusing the school director's new broadcasting system. They succeed in sending their teacher to a sanatorium and get a replacement that turns out to not be so bad after all.

The young Ernst Leuchtenthal is planning to travel to the USA for a year to study. Before he leaves, his father asks him for a meeting. Consul Leuchtenthal wants to get his son a "good" marriage before he disappears overseas. The old man has the very young, attractive Christine von Auffenberg in mind, who runs a breeding farm for chinchillas. This would fit in well with the consul's business, as he earns good money as a fur trader. Ernst is not too keen on marrying a woman his father has chosen for him, especially as he does not love Christine. In the local children's home he meets the light-blonde Marianne, and for him it is like love at first sight.