What goes through your mind when you're buried alive for hours before you die? On a Wednesday in June 2013, Arick Baker finds the answer when he climbs into one of the enormous grain bins that dot the Iowa landscape and is swallowed by 25,000 bushels of corn. Miraculously, he beats the odds and survives. For hours, four brave volunteer rescue workers toil inside the bin while more than 120 volunteers from across the state labor outside the bin trying...