[1] For the first time Axel Strøbye appeared as criminal assistant Jensen, pursuing the gang in all later films.

Benny and Kjeld have got a permanent job at a local merchant, run by an elderly man named Quist.

Benny and Kjeld are doing overtime but are accused of the robbery and imprisoned as Egon and Harry flees before the merchant Quist appears with a rifle, before calling the police.

The plan is to sneak in through the sewage system, and to continuing up towards the offices where the safe is, secured with light-sensitive alarms and hydraulic doors.

Egon is yet again left on his own, and this time he can't even persuade Harry to join him, especially not if they are going to sail in a boat, which is part of the plan.

Meanwhile, Benny and Kjeld have realised how badly the economic situation is in the grocery store, running at a major deficit.

Benny thinks of Dynamite-Harry, who can blow a hole in the wall on the other side of the cold room, and this time they have to dress up as men transporting beer.

Egon is driven to the airport by the police, and he manages to get on a plane destined for Mallorca along with the rest of the gang including Yvonne and Børge in the nick of time.