They were self-reliant individualists who forged a deadly team, and the initiative of individual submarine captains proved instrumental in the American victory in the Pacific. We'll see how trendsetters like Dudley Morton and Richard O'Kane brought new ideas to submarine warfare, showing that aggressive strategies, like surface running, were the best way to sink the most enemy ships. Sam Dealey, a submarine captain known as "The Destroyer Killer", is also featured.