What happens
Lois Lane and Horatio Horn set out to investigate a supposed sea monster haunting the Canadian fishing village of St. Selmo. Their search leads them to Ike Barnaby, a local man involved in a mysterious plot, who holds them at gunpoint and seals them inside a steel submarine that is sent toward the ocean floor by radio control. Superman, who was searching for them, spots a signal flare Horatio fired and tracks down Barnaby at a shack on the shore. The episode is part 11 of The Adventures of Superman, a serial first broadcast on May 12, 1947.
St. Selmo, a Canadian fishing village, and the nearby ocean and shoreline
Characters: Superman, Lois Lane, Horatio Horn, Ike Barnaby
Listen for: Superman confronting Ike Barnaby at the shack and then racing underwater to reach the sinking submarine
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.