Submarine!

For the World War II submariner, every day was a life-or-death trial: going to sea for months at a time; existing in dank, claustrophobic conditions; enduring long stretches of monotonous silence punctuated by adrenaline-spiked episodes of paralyzing fear and victorious elation. It was a duty few men could handle -- and even fewer would survive.

This is the true story of those brave men who served ...