Beneath the waves of the ocean lay a great menace to America—hundreds of Nazi submarines based in an incredible undersea city. Hitler's forces had discovered the lost, sunken land and were preparing to use it to strike across the Atlantic!
Beneath the waves of the ocean lay a great menace to America—hundreds of Nazi submarines based in an incredible undersea city. Hitler's forces had discovered the lost, sunken land and were preparing to use it to strike across the Atlantic!