Marvel Mystery Comics #22

The small European nation of Alslavia appeals to Torch and Toro for aid against the Nazis. On arrival, they encounter the Nazi invasion wall, a large armored wall mounted on tank treads. After destroying the wall, the Torches head out to sea where they spot a Nazi submarine. When they investigate, they determine that there is no one aboard. Diving down below, they discover a terrifying Nazi undersea fortress lying in wait for the British and Alslavian cruisers sent out to sink the sub. Torch destroys the fortress and all aboard her perish.