At 1:04 in the morning on October 14, 1939, HMS Royal Oak shuddered. The battleship was supposed to be riding at anchor, but the chain was now severed and a small hole had been punched through the ...

The U47 hits a boom cable, threatening to end the mission before it begins, but Captain PR’s quick thinking frees the submarine. Inside Scapa Flow, the crew discovers the lone battleship HMS Royal Oak ...