The Squadron leader throws big a party where one of his colleagues is going to demonstrate a new type of explosive substance.

Charged by their infatuation of the regiment's maid Elvira, friends and rivals Mandel and Axelsson arrive for military duty, whereupon silly things happen in and around a mansion that is rumored to be haunted.

In the last film of the original 91 film series two letters - one written in spite and another in love - end up in the wrong hands, while 91 and 87 as usual try to avoid ending up in military arrest.

Private number 91 gets into more hijinks in this hilarious sequel.

Privates 91 and 87 once again end up in goofy predicaments when an important map belonging to the regiment goes missing.

While Stockholm celebrates its 700th anniversary, private 91 is knocked on his head and goes on a fantastical journey through Swedish history.

When private 91 "Mandel" Karlsson is appointed General due to a computer error, he tricks a foreign military attaché into believing that the Swedish defense has a new weapon that turns male soldiers into women.

Privates 91 and 87 are ordered to carry a tube of explosive chemicals to a military depot, while prize fighter Ingemar Johansson tries to teach them how to throw a punch.