Egon Olsen is the leader of the Olsen Gang. While he was in the slammer, he planned how he would steal the fantastic golden figure Keizeroppzatsen.
Egon and the gang is about to commit their biggest heist – stealing 6 millions from an undercover operation at a freight company. The money is stored in the most advanced security vault ever constructed, guarded by professional gorillas.
Egon returns from prison with the key to a big heist, a hidden Nazi-treasure. The Olsen Gang finds the location of the treasure, but problems arise when the international criminals Carina and Ricco shows up.
