Fifteen years after they last saw each other Benny, Valborg and Dynamitt-Harry discovers that Egon Olsen is out of prison and living in a retirement home. Olsenbanden is reunited, and Egon has a plan. He knows about an old Frans Jäger loaded with money... And when the Vandenberg-documents surface, endangering national security, the gang gets one final shot at the big coup that will make them able to retire as millionaires in sunny Spain.