As I watched the final episode I wondered who would make it with the extreme cold. I saw posted F temps in the -20's and -30's, with a couple wind chill temps in the F -59* range. We get temps like this in Minnesota and it is flat out dangerous when things get this cold. When Callie started talking about making her gill net, due to the lake finally freezing over, I said to myself....not with bare hands in that wind and those temps. Sure enough, she began to make the gill net and quit because her hands simply did not have the dexterity for more than a couple minutes in that extreme cold. I noticed the ice thickness grew quickly too. The first hole Roland made looked to be about 4 or 5 inches deep. A few days later he was chopping threw more, and a few days after that it looked to be about a foot of ice he chopped through. I would bet the inside of the shelter was not above freezing, even with the fire burning. This means going in to warm up is still cold enough to be a problem. The calories burned just to maintain body heat goes way up when conditions are like this. Just let that sink in for a bit. The outside temp is so cold that it is literally 50-60*F warmer inside the shelter...and it is still below freezing in the shelter. Yet here they are, in a position requiring them to go out, collect water, food and firewood every day in order to survive...Brutal to say the least.