The D-Day invasion marks the turning point in World War II. But few know the whole story. In the first story, on the day of the invasion, the Ravensbruck concentration camp got in a fresh load of prisoners, and the commandant takes a special interest in one of them. But before he can make his move, he is interrupted because a top secret prisoner has become agitated. In the second story, a U-Boat exploring the Antarctic Coast with the help of a special prisoner finds an undersea cavern. What they find inside is much more than they expected!