The Underground World (1943)

Plot

Superman races against time to rescue Lois Lane, who has fallen into the clutches of a mysterious cult of hawk-people. Inspired by Edgar Rice Burroughs's adventure "At the Earth's Core," this thrilling tale sees the Man of Steel navigating a perilous underground realm. As he confronts formidable foes and unravels the secrets of this bizarre society, the stakes escalate, testing his strength and resolve. With Lois's life hanging in the balance, Superman must harness all his powers to thwart the sinister plans of the cult and bring her back to safety.