A man is traveling through the Yukon with only a dog by his side. It is below sub 50, even sub 75, and still the man trudges on.
Man falls through the ice and into a river. He is soaked from the waist down and needs to build a fire fast of he will die.
After the man finds some firewood he builds himself a sturdy fire underneath some spruce trees. He is feeling pretty good about himself because the Old Man of Sulpher Creek said it is impossible to survive by yourself in sub 50 degree weather.
While the man was in a panic, he had made a grave mistake. He built his fire directly underneath some snow covered spruce trees! As he was collecting fuel for his fire, he was causing the snow to start an avalanche, which went straight into his fire.
In one last ditch effort the man calls the dog over to him to kill his dog for warmth. However his hands are too cold and numb for him to grab his knife. His only option left is to run.
The man eventually falls over and dies after he runs for several miles. His dog stays with him until almost dark and in the end goes back towards the camp where other fire and food providers are.