The first of 14 Olsen Gang films presents us with Egon Olsen, head of the gang, and his friends Benny and Kjeld, who want to become the best known gang in Denmark and eventually Europe by stealing a famous Bavarian work of art currently displayed in a Copenhagen museum. Although Egon's plan works out fine, there is only trouble ahead for the little gang.

The oldest ship in the fleet, Martha, and her jolly crew, must race Harald and win, or it's the scrappers next.

The entire population of Bomø has gathered for the big day. Finally, after 56 years, the bridge connecting Bomø to the mainland has been completed. With the parish council chairman at the helm and the minister cutting the ribbon to make it official, everything should be in perfect order. However, the county governor is absent, as he has a financial dispute with the ferrymen, brothers Søren and Peter Severinsen.

When the Swedes occupy a Danish manor house, Svend Poulsen decides to help the family to safety. Along the way, Ib is taken prisoner. Svend Poulsen and his gang pretend to be a platoon of Swedish soldiers arriving at the castle where Ib is chained to the roof. During dinner that evening, the Swedish commander becomes suspicious, and soon the soldiers are fighting each other. However, Svend manages to free Ib.

Caretaker Alf Thomsen's very effective "alarm clock" comes once again in operation, and has again succeeded in getting him up to speed, despite their incessant discussions back and forth. Everything is peaceful and idyllic. Sleeping city housing block, with the famous staircase is to embark on a new day

The only daughter of an old landowner has died in Italy after leaving her family 15 years ago. Her son now returns home to Denmark. He threatens the landowner's nephew for his inheritance, prompting the nephew to devise several plans to discredit the boy in the eyes of his grandfather. The plans almost succeed, but thanks to help from the priest, among others, the story ends with a reconciliation between the grandson and his grandfather.

After his usual stay behind bars, Egon has another cunning plan involving millions. They rob over 4 million from a money transport. The gang keeps a low profile and hide the money. But it's stolen by "Kongen" and "Knægten", who immediately start living it up - in the penthouse suite at the Sheraton. The suitcase with the money changes hands several times, before Kongen's daughter takes of with all the money.

Due to his gambling addiction, farmer Hans Sværke has brought his farm to the brink of bankruptcy, thereby opening up the opportunity for the wealthy landowner Karius to achieve his goal of taking over the farm. However, parish bailiff Mikkelsen vouches for Sværke and saves him for the time being, and Sværke then leases the farm. Sværke dies, and his talented son Niels takes over the lease. He and the farmer's daughter, Grethe, are happy together, and Niels manages to get her hired at the farm. But Karius' daughter, who is in love with Niels, burns with jealousy and persuades her father to take advantage of Niels' difficult financial situation and take over the farm. Things look bleak for Niels, who has been cornered by the wealthy landowner. But one day while plowing, he sees something glinting in the soil...

Landowner Munk has problems – he cherishes his wild moorland and does not want to parcel it out. His friend Martin Hald tries to mediate, but in vain. At the same time, Munk is worried about his nephew Jørgen, who grew up with him. He is in prison – convicted on false grounds. In prison, he has a friend named "Fusser," and when they are released, Fusser decides to investigate Jørgen's case.

The landowner couple Von Rambow are experiencing significant financial difficulties and are therefore forced to leave their residence and their happy life in Copenhagen. Instead, they must settle for the more down-to-earth life of farmers. The young maiden Marie Møller is deeply in love with Von Rambow's cousin Count Frantz, but he prefers the estate inspector's beautiful Louise. The unfortunate Triddelfitz, on the other hand, is madly in love with Marie Møller, which leads to many complications before all the pieces of the puzzle of love fall into place.