Podcast Summary: Dangerous Assignment: The Nazi and the Physicist

Podcast: Choice Classic Radio Detectives | Old Time Radio
Episode Date: February 18, 2026 (original broadcast: 04/24/1950)
Starring: Brian Donlevy as Steve Mitchell

Episode Overview

This episode of Dangerous Assignment follows government agent Steve Mitchell as he investigates the mysterious disappearance of two scientists—Dr. Herman Kreutzer (an ex-Nazi) and Dr. William Peters, a nuclear physicist—in Alaska. What begins as a supposed vacation quickly turns into a complex web of espionage, deception, and murder, as Mitchell uncovers a plot involving stolen identities, a submarine, and international intrigue.

Key Discussion Points & Plot Developments

1. The Assignment Begins: From “Vacation” to Mission

• [01:55] Steve is told by his boss, the Commissioner, he has a vacation, but with strings attached: he must go to Alaska to check on two missing scientists.
  • Quote - Steve Mitchell: “My vacation has just turned into a busman’s holiday.” [02:46]
  • The missing are Dr. Kreutzer (ex-Nazi, “de-Nazified, we think”) and Dr. Peters (nuclear physicist).
  • The wife of Dr. Peters is in Alaska, worried after her husband missed calling on their anniversary.

2. Initial Leads in Alaska

• [04:51] Steve meets Mrs. Peters at the Waterfield Hotel in Fairbanks.
  • She insists her husband would not forget to call, suggesting foul play or trouble, and gives Steve a postcard from “Mrs. Ludwig’s boarding house” in Cordova as a clue.
  • Quote - Mrs. Peters: “Bill is a scientist, Mr. Mitchell. He never forgets anything.” [05:05]

3. Tracking the Scientists in Cordova

• [06:34] Steve questions Mrs. Ludwig, the boarding house owner, who claims Kreutzer and Peters skipped out on their bill and moved to the Atlas Hotel for one night.
  • A curt boarder, Mr. Campbell, acts suspicious but offers no help.
  • Mrs. Ludwig refers Steve to Julian, the shoe repairman. [08:53]

4. Clues and Obstacles: Julian, the Shoe Repairman

• [09:27] In the shoe shop, Julian confirms having spoken to the missing men and offers a potential lead: they planned to visit Christine Beauvais in Anchorage.
  • Julian mentions the day they left coincided with a submarine sighting off the coast: “we had the scare about the submarine.” [10:52]

5. Christine Beauvais — Stonewalled and Ambushed

• [11:56] In Anchorage, Christine Beauvais denies knowing Kreutzer and Peters, but her evasive behavior and subsequent actions arouse suspicion.
• [13:00] Steve follows her, ending up ambushed in a dark alley by a mysterious car—narrowly escaping death, he realizes he’s being tailed by the same man from Julian’s shop.

6. The Plot Thickens: Missing Boat and Submarine Mystery

• [15:10] Back in Cordova, Steve meets Fred the Boatman, who says Kreutzer and Peters rented and abandoned his boat four days earlier (same day as submarine sighting). No trace of the men is found.
  • Quote - Steve Mitchell: “I thought our boys had had a change of heart and decided to leave the country. But what happened a half an hour ago changed my mind.” [19:47]

7. Contact from Christine & Attempted Murder

• [16:07] Christine calls, admits she lied due to fear, and sets a meeting at Pete’s Bar, then changes location to the cannery via message.
• [18:01] The cannery proves to be a trap—Steve is nearly killed but escapes after a tussle with the assailant who smells of “something familiar… can’t peg it.”

8. The Revelations: The Real Fate of the Scientists

• [19:03] After regrouping with the Commissioner, Steve learns Kreutzer and Peters were spotted in Victoria and Seattle—but inconsistencies surface.
  • Atlas Hotel clerk and Mrs. Ludwig confirm that the men who checked in under the scientists’ names did not match their photos [22:15], revealing a case of stolen identities.

9. Showdown at Julian’s Shoe Shop

• [23:13] In Julian's shop, Steve finally identifies the mysterious scent as shoe polish.
  • He rips up the new pine flooring, uncovering the bodies of the real Kreutzer and Peters, killed and buried by Julian and his accomplices.
  • The imposters used the scientists’ identities to collect military data for foreign agents and intended to escape via submarine.
  • Quote - Steve Mitchell: “Yeah, that’s what tripped you up, Julian. Or maybe I should say polished you off.” [28:06]

10. Final Confrontation and Resolution

• [24:24] Julian and his henchmen confront Steve—gunfire ensues. Steve prevails, killing Julian and exposing the espionage ring.
• Steve pieces together the entire conspiracy and connects the details, with the shoe polish smell being the critical clue.

Notable Quotes & Memorable Moments

• Comic Relief / Suspense:

  • “Well, what part of the world do I head for to get shot at this time?” — Steve, dryly greeting the Commissioner [01:57]
  • “Haven’t you ever heard of baked Alaska?” — Commissioner, with playful sarcasm [02:24]

• Detective’s Deduction:

  • “I never thought I’d find a Chinese puzzle in Alaska, but it sure looks like I’m staring one in the face right now.” — Steve [11:06]
  • “I thought that submarine was hanging around to pick up some agents. I didn’t realize it had landed a couple.” — Steve, summing up the plot [27:30]

• Episode’s Catchphrase:

  • “Yeah, that’s what tripped you up, Julian. Or maybe I should say polished you off.” — Steve, punning as he cracks the case [28:06]

Timestamps for Important Segments

• [01:55] — Assignment introduction by the Commissioner
• [04:51] — Meeting with Mrs. Peters, the emotional wife
• [06:34] — Arrival at Mrs. Ludwig’s boarding house
• [09:27] — Discovery of Christine Beauvais as a lead
• [13:00] — Steve’s first ambush in Anchorage
• [15:10] — The missing and damaged boat revelation
• [16:07] — Phone call from the frightened Christine
• [18:01] — Attempt on Steve’s life at the cannery
• [19:03] — Call with the Commissioner: new information surfaces
• [22:15] — Confirmed: imposters at the hotel, not the real scientists
• [23:13] — Clue falls into place: the smell of shoe polish
• [24:24] — Discovery of the bodies, final confrontation
• [27:30] — Steve’s wrap up, connecting all the pieces
• [28:06] — Steve’s final pun as he closes the case

Tone & Style

The episode maintains a classic hard-boiled detective tone full of wry humor and rapid dialogue. Steve Mitchell is cool, quick-witted, and skeptical, always ready with a retort. Supporting characters are colorful: from the gruff Mrs. Ludwig, to the evasive Campbell, and the sly, menacing Julian. There’s a blend of suspense, intrigue, and the occasional wisecrack, all wrapped in the fast-paced, stylized language of old-time radio drama.

Summary

What starts as a missing-persons case in the wilds of Alaska is soon revealed as a deadly game of international espionage. Steve Mitchell’s investigation untangles a strike team of enemy agents using the identities of murdered scientists to steal secrets—and the linchpin to solving the crime is the overlooked scent of shoe polish on the villain’s hands. With suspense, snappy banter, and a satisfying twist, this “Dangerous Assignment” delivers a memorable tale of Cold War intrigue from the golden age of radio.