The Last Exploits of the Olsen Gang 1974

After their last heist, Egon Olsen and the Olsen Gang head to Majorca with no money, the loot having accidentally burned up when Benny Frandsen and Kjeld Jensen tossed it out the window to shake the police off their trail. Back in Denmark, Egon is released from prison; Kjeld and Benny are waiting, but the events in Spain have left him wary, and he detaches from them. He has been hired by a Stock Broker Holm Hansen to open a safe in Switzerland belonging to his deceased associate. Egon demands 25% of the value of the safe’s contents, and Holm Hansen agrees, but a Swiss henchman betrays him, leaving Egon at the mercy of the authorities. Egon escapes and returns to Denmark, where he reunites with Benny and Kjeld and hatches a new plan to reclaim payment and settle old scores. The safe in question contains the Bedford Diamonds, a legendary collection of jewels coveted as an inflation-proof investment and pursued by police around the world.

Holm Hansen sells the diamonds to an Arabian Oil Sheikh for 15 million dollars. The gang devises a bold, theatrical heist: a boat, a bus, and a hundred balloons to lift the diamonds into their hands, all under the noses of the Sheikh and his police escort. Egon, however, knows the diamonds cannot be legally sold, so his aim is to extort half of the 15 million from Holm Hansen, only to be foiled by Yvonne Jensen, who has hidden the real diamonds and replaced them with worthless keepsakes. Holm Hansen decides that Egon must be eliminated, and orders his henchman Bøffen to make him disappear.

Bøffen captures Egon and tries to drown him in the Copenhagen harbor, but Benny and Kjeld arrive just in time to save him. With his life in the balance, Egon finally unveils a plan: Benny and Kjeld don disguises as police officers, while Egon pretends to be a captive. The trio confronts Holm Hansen, and while he is distracted by Benny, Egon and Kjeld execute their reversal—opening the safe and swapping the 15 million for the diamonds. Realizing he has been outsmarted, Holm Hansen calls the real police, only to find the Bedford Diamonds in his possession, and he is arrested. The gang then escapes to Majorca with the money, bringing their long-running caper to its inflation-proof finale.