Jönssonligan dyker upp igen (1986)

As always, Sickan has come up with a new plan. This time he wants to rob the IKEA furniture store. During their nightly break-in Sickan discovers that IKEA is used as a secret smuggling central to send American computers to the Soviet Union. The computers are picked up by Soviet submarines. Naturally, it is their arch enemy Wall-Enberg who is behind all of this.