What happens
On the Magic Island, the Gregory rescue boat is brought alongside Mrs. Gregory's yacht, and Captain Bradford and Pat prepare to receive Johnson. Johnson's boat has been towed in by a Euclidean submarine, and Jerry and Joan are aboard it. As G-47 approaches along the pier, Tex and Pat rush to set up a ruse: McLeod must pass himself off as Johnson to the sinister G-47, who wants a formula. The plan puts McLeod in grave danger, and the tension rises as the group works to deceive their captor.
The Magic Island, at the Pier 5 lock and aboard Mrs. Gregory's yacht
Characters: Tex, Pat, Captain Bradford, Mrs. Gregory, Jerry, Joan, Johnson, McLeod
Listen for: Tex's urgent instructions to McLeod to pose as Johnson before G-47 arrives
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.