What happens
The Gregory party, held prisoner on the artificial island of Euclydia, is brought back to the island after failing to escape by boat. Jerry and Captain Bradford arrive at the island's pier, where armed guards escort them down in an elevator to a row of steel chambers. There Jerry, Tex and the rest of the group find that their voices echo loudly through the walls. Mrs. Gregory and Joan are also confined in these rooms, and the group's situation on the island looks grim. The series is Magic Island.
Euclydia, an artificial island in the ocean, and a set of steel chambers far below its surface
Characters: Jerry, Captain Bradford, Mrs. Gregory, Joan, John
Listen for: The echoing sound of the chamber voices and Jerry's observation that the island has been turned around
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.