The film starts like most of the Olsen-gang films, with Egon being released from The State Prison in Vridsløselille. The gang goes back home to Kjeld and Yvonne to discuss their next caper. Unlike most other Olsen Gang films, this heist will take place in Jutland. Egon has obtained a map for a treasure stored in an old German command bunker on the west coast. To get to Jutland they must cross the then newly built Little Belt Bridge (1970). But two other criminals (Helle Virkner and Willy Rathnov) have also got wind of the story. And the Olsen Gang do not make it easier for themselves by taking Yvonne along. And they mistakenly believe that it will be easy to fool the locals - especially they misjudge the wily scrap dealer (Karl Stegger) and his mute assistant (Preben Kaas). They soon become much, much wiser. A bomb left over from World War II gives Kjeld a short, but very significant, shell shock, which causes him to stylishly carry out a terrific ride in a runaway dump. Not surprisingly, a planned Majorca trip gets postponed.