What happens
Clark Kent and Jimmy Olsen are aboard the Clara M, an old clipper ship moving slowly through fog, after discovering that a piece of oiled silk hidden in a compartment is a treasure map. Captain Pete Barnaby took the map, and the crew quarrel over how any treasure would be shared. Kent, locked in the hold with Jimmy and the stowaway Pug Flanagan, slips out to act in secret as Superman. Series: The Adventures of Superman, original air date April 14, 1941.
The clipper ship Clara M, sailing through fog toward the Indian Ocean
Characters: Clark Kent, Superman, Jimmy Olsen, Pug Flanagan, Pete Barnaby
Listen for: Kent's change into Superman in the dark hold, and the quarrel among the crew over splitting the treasure
Written from the episode itself; it never gives away the ending. Every recording is remastered for the stream: cleaned of rumble, hiss and mains hum (and the old TV whine where we found it), then levelled in two passes to steady broadcast loudness, so one show is never quieter than the next.