"The commando raid on the NorskHydro heavy water plant in Hardanger Norway during WWII, the Norwegian commandos parachuted in during one of the worst blizzards on record, along with hundreds of pounds of explosives, and had to trek through the Norwegian wilderness for 15 days before they found a hunting cabin. The English commandos who were supposed to link up with got shot down, and the only reason they were able to make it to the cabin was that they found one of the commandos sled, which he had lost as a child. After that they had to hole up in the hunting cabin for months, waiting out the weather. They survived on moss until. On Christmas morning, one of the men managed to shoot a deer.

They went on to destroy the heavy water plant as well as sink the ship carrying what heavy water had been produced, effectively ending any chance Nazi Germany had of developing atomic weapons.

The story is even crazier and less plausible than I’ve described, but I’m on mobile so I’ve left some things out."

Gentleman_Viking