Nils Nilsson from Åsen, better known as Åsa-Nisse and his friend Klabbarparn goes Moose hunting. As a result of a sabotage, staged by their wives, Åsa-Nisse is accused for hunting with illegal weapons.

Åsa-Nisse has invented a very powerful engine and he sells the patent. However, the grocery store owner Sjökvist has been sneaking around ...

Pop music comes to Knohult and Åsa-Nisse has a new invention that makes his hens lay their eggs to the beat of the music.

Åsa-Nisse invents a new super fuel that makes boats look like rockets.

Åsa-Nisse and Klabbarparn are winter fishing.

Åsa-Nisse and Klabbarparn has found an old pirate map that leads them to the island Mallorca in the Mediterranean Sea as they search for the hidden treasure.

Sjökvist needs a woman to tidy up his general store and Åsa-Nisse helps him out to put an ad in the local newspaper.

A con man inherits a gold mine. Knowing that his family are even bigger con artists than he is, he assumes the mine is worthless, and teams up with a partner in a scheme to unload it on some unsuspecting chumps. However, the other members of his family discover that the gold mine is actually worth a lot of money, and they set out to take it from him before he realizes what he has.

Inspired by the space-race, Åsa-Nisse and his friends build a top-secret moon rocket. They have big trouble hiding their secret from prying newspaper reporters, and spies disguised as cows...

In Knohult things havn't changed much. Eulalia is tired of Nisse who's engaged in all sorts of inventions in his workshop or poaching in the forest rather than to repair the water pump. When Eulalia in protest begins swimming in soft drinks and water the plants with spirit Åsa-Nisse sees nothing else to do but to repair the pump. As with all his inventions he adds a few extra features ... When he starts the machine the ground rumbles and up comes oil instead of water! Now, not only Åsa-Nisse, but the whole Knohult sees their chance to become wealthy! But "Dunderpumpen", as he calles the invention, turns out to be stronger than anyone had imagined, and when shady Scanian oil magnates with support of the Swedish government wants their share of the pie Knohult declares themselves a republic...

Åsa-Nisse's brother Julius returns home from USA, apparently very rich. Also, Åsa-Nisse och Klabbarparen takes care of a little child which leads to all sorts of complications.

Corporal Åsa-Nisse Nilsson is an officer who somehow manages to teach his soldiers both discipline and the art of war.