Auch ich war nur ein mittelmäßiger Schüler

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...

While on tour somewhere in Italy, a famous German pop singer loses his voice. All tickets for the concerts have long been sold out. Someone from the "Star's" entourage finds a young local guy who used to walk around the city singing in a very similar voice. From then on, the pop star stood on stage in front of the microphone, only opening his mouth, while the unknown street singer sang for him, standing in front of the microphone behind the scenes. At the end of the film, the star's voice returns, and he begins to sing solo and in a duet with the young singer.

Martin Hinterkirchner, dissatisfied with his position, sends the hits he has secretly composed to a manager. One of them would be ideal for the famous singer Linda Borg, but her manager refuses. Unfortunately, Martin now blames Linda and has nothing good to say about her - in contrast to his grandfather Leopold, who met Linda at a dog show. When Martin stands in for his untalented friend Peter as a singer at a hit song competition and mistakenly believes he has failed, he returns to his Tyrolean home village of Himmelberg. Peter, on the other hand, accepts a contract even though he cannot sing the required duet with Linda Borg and looks for excuses. Linda travels to Tyrol in a bad mood because she has received love letters from there. She has no idea that Martin's grandfather Leopold is the secret sender who wants to get her to sing Martin's hits.

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.

Willi Winzig is a small tax officer with a big heart. He sometimes lets the tax files of his insolvent fellow citizens disappear into the air shaft. But shortly before his retirement, the shaft is so full that Willi has to dispose of the file of a penniless taxpayer in the wastepaper basket. The scam is promptly discovered and Willi is threatened with a hefty fine - even dishonorable dismissal from the civil service. Fortunately, friend and colleague Felix Klein knows what to do.

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.

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.

When the sons of farmer Thomas and his wife Therese Stangassinger, Toni and Sepp, introduce their fiancées to their parents, the latter cannot believe their eyes. Independently of each other, the parents try to prevent the wedding by any means necessary.

After her mother's death, the five year old orphan Heidi is brought by her aunt to her grumpy grandfather Alp, who leads a hermit life in the beautiful Swiss mountains. Heidi's natural cheerfulness quickly brings renewed joy in grandfather Alps life. Heidi becomes friends with the goatherd Peter who is about the same age as her and spent two beautiful years in the pasture. But then she is sent by her aunt to Frankfurt in the house of Consul Sesemann where Heidi should get a proper education and upbringing. After some initial difficulties Heidi eventually adjusts to her new situation and makes friends with Clara, the paralyzed daughter of the consul. Only with the strict governess Miss Rottingmeier she keeps getting in trouble. Miss Rottingmeier clearly can not cope with the free and outdoors spirit of Heidi. But Heidi lets a fresh wind blow through the Sesemann house and even causes Clara to overcome her illness.

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.

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.

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.