Mustard

Underwater Aircraft Carriers: Imperial Japan’s Secret Weapon (2020x3)

Air date: May 28, 2020

In August of 1945, as the world celebrates Imperial Japan’s surrender and the effective end of the second world war, the American’s make a puzzling discovery out in the Pacific. The US Navy has intercepted a Japanese submarine that’s unlike anything they’ve seen before. It’s by far the largest submarine ever constructed, at nearly twice the length of a typical German U-boat. But it’s what the submarine carries that truly baffles the Americans.