42. "Superman: The Empire in the Sky", "Vigilante: The Origin of the Vigilante", "Black Pirate: The Ship Spies", "The Three Aces Revolution in Central America!", "Mr. America: A Modern Flying Carpet", "Congo Bill: The Jungle Film", "Zatara: The Man Who Could Control Minds"

Four influential men, science lecturer Carl Bransom, writer Nick Flaherty, politician John Standing and industrialist Freeman Chase, all vanish mysteriously. Clark Kent contends that these are no ordinary kidnappings, as all four have been missing for weeks without a ransom demand.