The Olsen Gang on the Track

Bøffen is an enforcer hired to recover the money the Olsen Gang stole. After tracking them to Mallorca, he steals the red suitcase containing their fortune while they're living there. This triggers the chain of events that leads to Egon's arrest in Spain and forces the gang to start planning a new heist back in Denmark.

After the gang loses the money in Spain, Yvonne contacts the Danish police to inform on the stolen funds and demands an advance payment in return. This betrayal shifts the trust dynamics within the gang and forces Egon to devise a new plan to recover their fortunes, now with added pressure from law enforcement.

Egon memorizes the complete Danish train schedules and invests the recovered money in gold bars destined for Zürich. The plan involves hijacking a small shunting locomotive to access an armored Franz Jäger wagon carrying the gold, then transferring the gold onto a truck for transport. The complexity lies in timing the operation precisely with train schedules.

After hijacking the armored wagon, the gang loads the heavy gold bars onto a battered medium truck. The vehicle collapses under the excessive weight, making it impossible to continue. They must abandon the gold to escape the pursuing police, splitting up in disagreement over their failed plan.

The Danish State Railways switches to a summer timetable, making the original plan more dangerous and time-sensitive. The altered schedule creates tighter police oversight and changes train timing, forcing the gang to adapt their carefully planned operation or risk capture.

During the car-and-train chase along the Copenhagen harbour railway, Yvonne provides police with a crucial description of both the perpetrator and the armored wagon. This helps authorities track Bøffen while the gang simultaneously pursues their own goals, showing Yvonne's complex loyalty between the gang and law enforcement.

After recovering the gold, the gang launders it through a Norwegian oil company to acquire a majority stake in the Danish shipping company I.C. Lauritzen. This corporate scheme allows them to legitimize their criminal proceeds while giving Egon a position as chairman of the board.

The tax administration fails to detect the income from the illicit deal because the money was laundered through a Norwegian oil company and absorbed into the corporate structure of I.C. Lauritzen. The complex corporate transaction hides the criminal origin of the funds from Danish tax records.

Despite successfully laundering the gold and gaining control of I.C. Lauritzen, Egon is eventually arrested and returns to prison. The film suggests that the constant cycle of crime and imprisonment is inevitable for the Olsen Gang, as their criminal lifestyle ultimately catches up with them regardless of how clever their schemes become.

The meta notes mention a 'bittersweet' and 'circular narrative' ending, indicating this return to prison closes the story loop.

After the truck collapses and they must abandon the gold, the gang members argue and split up in disagreement. However, Benny and Kjeld later rescue Egon from a situation where he was about to disappear and be lost. This reinforces their stubborn camaraderie and allows them to regroup for another attempt.

During the police's summer rail outing designed to trap the gang, Bøffen spots the Olsen Gang towing the armored wagon along the Copenhagen harbour railway. This triggers a dramatic car-and-train chase across Amagerbanen, with Bøffen now pursuing them alongside law enforcement.