So sad.

Les Stroud did a Discovery Channel special called "Lost in the Snow", where he analysized what one couple on "I Shouldn't Be Alive" did when their truck broke down and they were stranded flr 9 days in the middle of nowhere Navada in the middle of winter. He shows what to do to survive a similar situation.

Of course, the best strategy is to not get stuck in the first
place to have a rescue plan in place in case you do.