1940 - and bloody death sails the Atlantic!

Deep down in the waters of the mid-Atlantic lurked the sleek shape of U-42, crack submarine of Hitler's navy. Her torpedoes primed, she was the deadliest steel shark in the sea. Above her sailed the massive hull of a British destroyer. Like predators the two ships stalked each other, both ready to move in for the kill. And as they played their murderous game of cat-and-mouse, the men of the U-42, on their first deep-sea mission, waited with mounting tension. Sealed in a steel cylinder that could at any moment become a coffin, they began to know the real meaning of war. And for one man in particular - Baldur Wolz, tough, ruthless and ambitious - it was the biggest test of all. The test that was to earn him the name Sea Wolf...