When Vanheden and Dynamit-Harry tries to break doctor Busé out of jail, they get Herman Melvin instead. He has been working at the Swedish Mint and the doctor, who has started to think like Sickan, has written a plan for making a burglary there, on Melvin's back. However, something goes wrong. They don't get a lot of Deutsch-marks as they planned but instead, they end up on a ship going to Poland, together with bunches and bunches of Polish Zlotys (the Polish currency). In Poland, they discover that the mafia are very interested in that money and Wall-Enberg is working with the mafia.
Ulf Brunnberg
as Ragnar Vanheden
Björn Gustafson
as Dynamit-Harry
Stellan Skarsgård
as Herman Melvin
Birgitta Andersson
as Doris
Peter Haber
as Dr. Max Adrian Busé
Elias Ringquist
as Lillis
Per Grundén
as Wall-Enberg
Weiron Holmberg
as Biffen Johansson
Bernt Lindqvist
as The Chief of Police
Carl Magnus Dellow
as Beckman
Pontus Gustafsson
as Andersson
Gösta Bredefeldt
as Burak