Sherlock Holmes: The Adventure of the Missing Submarine Plans

Choice Classic Radio Detectives | Old Time Radio
Starring Basil Rathbone (Sherlock Holmes), Nigel Bruce (Dr. Watson)
Episode Date: October 24, 2025

Episode Overview

This episode adapts "The Adventure of the Bruce-Partington Plans," plunging Holmes and Watson into a case of national security involving stolen submarine blueprints, a dead clerk, and espionage. Set against the backdrop of a foggy London, the duo navigate political intrigue, murder, and betrayal to protect Britain’s secrets.

Key Discussion Points & Plot Breakdown

Setting the Scene: Fog, Frustration, and Inactivity

• 00:40–03:18
  Holmes and Watson, cooped up by persistent London fog, mull over a lack of criminal activity, with Holmes lamenting the "no initiative, no imagination" of London’s underworld. (02:53)
  • Holmes: "No initiative, no imagination. Nothing ever gets done." (02:53)
  • Holmes is bored and irritable, longing for a challenging case.

The Inciting Incident: Mycroft’s Disturbing Telegram

• 03:28–05:46
  Mycroft Holmes sends a rare urgent telegram, prompting Holmes and Watson to revisit the mysterious death of Cadogan West, a government clerk found dead on train tracks.
  • The case is “serious enough to cause Mycroft to alter his habits.” (04:43)
  • Significant Details: Cadogan West carried technical papers, including missing submarine plans, and bought theatre tickets for the night he died—suggesting he didn't plan suicide.

Enter Mycroft: National Stakes and Pressures Mount

• 06:32–08:16
  Mycroft, described as the “tidiest and most orderly brain alive,” arrives in person, indicating national urgency. He reveals the stolen Bruce Partington submarine plans are involved, of critical military importance.
  • Mycroft: "Those papers... were none other than the plans of the Bruce Partington submarine. A submarine which would completely revolutionize naval warfare." (07:23)
  • Three crucial pages are missing; the peace of Europe hangs in the balance.

Investigation Launch: The Facts and Suspects

• 09:17–11:10
  Mycroft shares official findings:
  • Custodians: Sir James Walder and senior clerk Sidney Johnson, both with alibis.
  • Cadogan West’s reputation is “hot headed, but straight and honest.”
  • Holmes puzzles over the absence of West's train ticket and the logic of his actions.

Crime Scene: Danger Underground

• 13:39–16:27
  Holmes and Watson visit the Underground tracks where West was found.
  • The location features a sharp track curve with minimal signs of struggle or bleeding, suggesting West died elsewhere and was placed atop the train.
  • The duo narrowly escape an oncoming train in a tense, cinematic sequence.
    • Memorable Moment: “Run sir, run for your life!” (15:10)

Victims and Connections: Sir James’s Death and West’s Fiancee

• 16:27–20:43
  Holmes visits Sir James's house to find he has died from heartbreak (“He couldn't survive the disgrace to his department.” (17:16)).
  • With Violet Westbury, West's fiancé, Holmes elicits that West was worried the night he died and noticed someone lurking near the office:
    • Violet Westbury: “He would have cut his right hand off rather than sell a state secret.” (18:07)
    • West noticed a "shadow moving" and went to investigate, never returning—implying a witness or second party to the crime.

Holmes’s Legwork: Chasing Spies

• 21:10–22:21
  Holmes spends the day investigating the homes of known foreign agents, focusing on Hugo Oberstein. He finds evidence implicating Oberstein and schemes to set a trap using coded newspaper ads found in Oberstein’s desk.

The Trap: Cat-and-Mouse at Oberstein's House

• 22:38–25:43
  Holmes and Watson break into Oberstein’s house and set an ambush for whoever responds to the coded ad.
  • They capture Colonel Valentine Walter (Sir James's brother), the real thief:
    • Watson: "It's Colonel Valentine Walter, Sir James's brother." (25:09)
    • Walter, wracked by guilt, confesses he stole the plans out of financial desperation but denies killing West.

Truth Revealed: The Murder Conspiracy

• 25:43–27:06
  Colonel Walter recounts that after he took the plans, West confronted him with Oberstein present. Oberstein murdered West and used the Underground to dispose of the body, planting some papers on him to implicate him and keep others.
  • Oberstein (impersonated): “We give him a nice ride on top of the underground train. No. He will be the guilty one. Who will ever know?” (26:39)

Resolution: Justice Served

• 27:10–27:49
  Holmes tricks Oberstein into returning to England with a fake offer for the missing papers; he is apprehended at Folkestone. Holmes receives a token of gratitude from "a gracious little old lady"—implied to be the Queen.
  • Dr. Watson: “When I asked him where he got it, he answered it was just a small present from a certain gracious little old lady for whom he'd been able to do a small favor.” (27:40)

Notable Quotes & Memorable Moments

• Holmes on the boredom of crime in London:
  “No initiative, no imagination. Nothing ever gets done.” (02:53)

• Mycroft on the value of the submarine plans:
  “A submarine which would completely revolutionize naval warfare. The most important papers in our government archives.” (07:23)

• Holmes rationalizing the murder scene:
  “His body fell from the roof of the carriage where it had been placed. Cadogan West met his death elsewhere.” (16:20)

• Violet Westbury defending her fiancé:
  “He would have cut his right hand off rather than sell a state secret.” (18:07)

• Holmes, ever wry:
  “There are times when I suspect we aren't quite respectable.” (23:02)

• Climactic confession and setup:
  “We give him a nice ride on top of the underground train. No. He will be the guilty one. Who will ever know?” (26:39)

• Watson on Holmes’s reward:
  “It was just a small present from a certain gracious little old lady for whom he'd been able to do a small favor.” (27:43)

Timestamps for Major Segments

• Holmes & Watson discuss the fog and lack of crime: 00:40–03:18
• Mycroft's telegram and case background: 03:28–05:46
• Mycroft explains the national importance: 06:32–08:16
• Visit to the crime scene in the Underground: 13:39–16:27
• Interview with Violet Westbury: 17:53–20:43
• Holmes’s investigation of Oberstein’s house: 21:10–22:21, 23:02–24:20
• Ambush at Oberstein’s, Colonel Walter caught: 24:38–25:43
• Colonel Walter’s confession and Oberstein’s guilt: 25:43–27:06
• Final wrap-up, mention of Holmes’s royal reward: 27:10–27:49
• Next week’s teaser (“The Lion’s Mane”): 28:27–28:53

Episode Tone and Style

The tone combines tension, urgency, and the trademark camaraderie between Holmes and Watson. Basil Rathbone’s Holmes is sharp, restless, and commanding; Nigel Bruce’s Watson provides warmth and levity. Mycroft is formal and harried. The episode keeps the original Victorian suspense while adding Golden Age radio’s brisk pacing and clear moral resolution.

Summary for New Listeners

This episode masterfully blends espionage intrigue, fast-paced investigation, and character-driven drama. The fog-drenched streets of London, the shadowy world of official secrets, and the tragic consequence of misplaced trust make for an engaging, classic radio detective story.

Whether you're a fan of Holmes or new to these legendary broadcasts, “The Adventure of the Missing Submarine Plans” exemplifies sharp wit, clever deduction, and the pulse of old-time radio mystery at its best.