What happens
Commander Buzz Corry and his assistant Happy are captured by Prince Baccarati's aide Murdoch in a castle control tower on the remote Planet X, where the two Space Patrol officers have come to force the prince to allow a rescue squadron to reach Panadex. Murdoch overpowers them with a paralyzer ray, and the pair are locked in a dark chamber. There they are contacted by Ortho, a telepathic native of Planet X, who explains that his people have long been threatened by Baccarati. Buzz and Happy agree to help, and the story continues from there. The series is Space Patrol, and this episode first aired on October 17, 1953.
The castle of Prince Baccarati and its control tower on the remote Planet X, with the surrounding forest of Panadex
Characters: Buzz Corry, Happy, Prince Baccarati, Murdoch, Dr. Melingro, Ortho, Major Robertson
Listen for: Murdoch's paralyzer ray attack in the tower, and Ortho's telepathic contact with Buzz and Happy in the dark chamber
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.