The Jönsson Gang Turns Up Again (1986)

Sickan has devised yet another scheme, this time targeting the IKEA furniture store for a heist. While breaking in under the cover of night, he stumbles upon a shocking secret: the store serves as a covert hub for smuggling American computers to the Soviet Union. These high-tech devices are secretly collected by Soviet submarines that slip into the Swedish archipelago. As it turns out, their longtime rival Wall-Enberg is orchestrating the entire operation from behind the scenes.