The Spy Who Became Stalin's Greatest | Eastbound From The Cotswolds | 3

4 Aug 2026 · 41 min · 15 chapters

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In short

How Ursula Kuczynski (“Sonia”), a German communist turned Soviet spy, helped infiltrate Allied intelligence during WWII, including the OSS’s secret radio system, then later tried to re-establish contact and ultimately defected from spying into a new life in East Berlin.

Guests (as in-episode people)

No podcast “guests” are interviewed in this episode; it’s a narrative. Key figures include Erik Henschke (German communist, associate of Ursula Kuczynski), Joseph Gould (US OSS lieutenant), Paul Lindner (Berlin metalworker recruited for an OSS mission), Ursula Kuczynski (“Sonia”), Klaus Fuchs (atomic scientist), Alexander Foote (former agent who defects to MI6), and MI5/MI6 officers Sneddon and Savile.

Key claims

Gould’s OSS mission inside Germany was vulnerable to Soviet infiltration; Lindner used “Joan Eleanor” to send targets and supply requests; Sonia’s network survived MI5 scrutiny until communication broke; Fuchs’ atomic leak to Moscow implicated her; GRU later recruited her to help build Soviet nuclear capability.

Notable examples

parachuting into Germany; two-way radio with an aircraft; burying and later recovering the handset; dead-drop failures; Ursula’s tea-house interrogation; moving to East Berlin after receiving permission; her later career as children’s author “Ruth Werner.”

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

The Meeting of Anti-Fascists

0:20 to 4:03

Discover a secret meeting of German communists discussing a mission against Hitler.

“Trusted enough not to be interned, distrusted enough not to be allowed to fight in the war.”

Infiltration Strategy

4:03 to 5:28

Explore the plan for the German exiles to become double agents for the Soviets.

“And that means his operation is ripe for infiltration by Moscow.”

The Final Assault on Berlin

7:20 to 14:00

Follow Paul Lindner's dangerous mission during the collapse of Berlin.

“This is Episode 3, Eastbound from the Cotswolds.”

Ursula's Disillusionment and Fear

14:00 to 17:09

Learn about Ursula's life after the war and her fears regarding MI5.

“And her home city, Berlin, is finally under communist rule.”

Alexander Foote's Defection

19:40 to 28:00

Discover the interrogation of Alexander Foote and his loyalties.

“She married one of the agents for a British passport.”

Struggles of Relocation

28:00 to 28:49

Explore the emotional challenges of moving for a better life.

“She gets up and goes to the window, looking out as heavy rain falls outside.”

Introduction to a New Story

29:48 to 30:26

A teaser for a narrative about neighborhood tensions and trust.

“Or will you trust the people five miles overseas?”

Ursula's Meeting and Mission

30:26 to 33:17

Follow Ursula as she navigates the dangers of espionage in Czechoslovakia.

“Just over a year since receiving Jürgen's letter, Ursula is meeting her brother in Czechoslovakia while he is there on academic business.”

The Weight of Secrets

33:17 to 34:18

Ursula grapples with the implications of Klaus Fuchs' arrest.

“Ursula opens the front door and picks up the milk bottles and her copy of the Oxford Times.”

Preparation for Departure

34:18 to 36:50

Ursula prepares to leave her old life behind as a spy.

“Beneath that, the headline, German atomic scientist arrested.”
Show all 15 chapters

Eliminating Evidence

36:50 to 37:46

The final act of erasing a past filled with espionage.

“She also needs her out of the house so that she can clear the cellar.”

Life in East Berlin

37:46 to 41:44

Ursula's experiences and challenges after moving to East Berlin.

“Ursula sits at a table in an apartment with a GRU officer sent from Moscow.”

Reflections on Betrayal and Loyalty

41:44 to 42:04

Ursula reflects on her life and the flaws of the system she served.

“But the communist utopia she had believed in never matched the reality of life in East Germany.”

Ursula's Reflections on Socialism

42:04 to 42:46

Learn about Ursula's changing views on socialism and her personal experiences.

“and increasingly troubled by the repression and dishonesty of the system she served.”

Richard Zorger: The Great Spy

42:46 to 43:04

Discover the true identity of Ursula's recruiter and his significance.

“The man who first recruited her in Shanghai, whose photo she kept throughout her life and whom she knew as Richard Johnson, was in fact Richard Zorger, one of the greatest spies of the 20th century.”
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Transcript

Automatic transcript. May contain errors.

0:00Audible subscribers can listen to all episodes of The Spy Who ad-free right now. Join Audible today by downloading the Audible app.

0:20August 1944 In a corner of a North London pub four German communists sit around a wooden table looking uncomfortable in their second-hand suits and neckties They are all exiled anti-fascists and trade unionists who fled Nazi Germany before the war and ended up sitting it out in Britain. Trusted enough not to be interned, distrusted enough not to be allowed to fight in the war. And they've gathered here on a vague promise of there being a chance to help end Adolf Hitler's regime. The man who made that promise approaches their table, carrying a tray loaded with beers. He is Erik Henschke, a stocky German communist and associate of Ursula Kuczynski.

1:12And with him is a man the men around the table don't recognize. Henschke puts the beers on the table. The men take their pints and shuffle along to make space for him and the unfamiliar man. Henschke sits. Gentlemen, this is the man I wanted you to meet. Lieutenant Joseph Gould from the US Office of Strategic Services. Lieutenant Gould smiles. He doesn't look like much of a soldier. He's youthful, bespectacled and wearing a suit. Hi folks, pleased to meet you. One of the men eyes him warily over his pint glass. You a spy? If you're asking if I work in intelligence, yes I do, sir. The men nod. Henschke cuts in.

2:03Lieutenant Gould has a proposal I think you will be interested in. Thank you, Eric. I'll get to the point. I'm looking for Germans, reliable anti-Nazis, to undertake a mission inside Germany. It won't be long before our troops are fighting on German soil, but Germany is an intelligence dead zone. We need people on the ground, men who know the country and the people. One of the men, Paul Lindner, puts down his beer Lindner is a 33-year-old former metalworker from Berlin whose good looks have been marred by the beatings he suffered at the hands of Nazis If it helps finish Hitler, I'm interested You need to know that it will be hazardous We'll pay you$331 a month But if you're caught, the Germans won't treat you as soldiers You could be killed.

3:00Although we will compensate your families if that happens. So what's the mission? We parachute you into Germany ahead of the Allied advance. You blend in, you reconnect with people you trust and build small intelligence rings. Then report back on troop movements, industrial targets, civilian morale, transport links, anything that helps the Allied push. And how are we supposed to report back? We're developing a new communication system. I can't say more now, but it'll let you relay information almost as soon as you have it. So, are you interested? Henschke speaks before any of the others can. We'll discuss this amongst ourselves and then we'll get back to you.

3:51The meeting went better than Henschke anticipated. Gould wants men on the ground. He's not worried about their politics, so long as they are anti-Nazi. And that means his operation is ripe for infiltration by Moscow.

4:13The following Sunday, on a street corner in West London, Henschke waits inside a red telephone box. It rings right on time. Sonia? Down the line from another payphone elsewhere in England, he hears the voice of Soviet spy Ursula Kaczynski, codename Sonia. How is the meeting? He wants our men. He doesn't care much who he hires, as long as they are anti-Nazi and willing to risk their lives, which they are. Excellent. He mentioned some sort of new communication system the men would use. He was reluctant to say exactly what it was, so I presume it's secret. The centre will want to know about that.

5:01So we should help them. Yes, absolutely. Henschke hangs up and steps out of the phone box. He has his instructions now. He'll let Gould know that the men are willing to go ahead. Officially, they'll be spies for the Americans, but in reality, they will be double agents infiltrating a U.S. intelligence operation to help the Soviet Union.

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7:14emergency agency, the OSS, to help the Soviet Union take Berlin. This is Episode 3, Eastbound from the Cotswolds.

7:30Seven months later, March 11, 1945, the outskirts of Berlin. On a hill, Paul Lindner stands alone in the dark after parachuting into Germany a week earlier. The Soviet Red Army is just outside the city, preparing for the final assault on the German capital. The American and British troops advancing from the west are more than 300 miles away. But somewhere overhead, invisible in the night sky, an American reconnaissance aircraft is circling the city. From inside his overcoat, Lindner pulls out a large metal handset. He extends its aerial, checks the connections, and switches it on. This handset is part of the OSS's secret radio communication system known as Joan Eleanor.

8:34Lindner can use it to communicate directly with the reconnaissance aircraft six miles above him. It's a wartime first, allowing two-way communication with spies behind enemy lines without relying on heavy and easily detected radio transceivers. A voice from the plane above comes through the earpiece of Lindner's handset. Is that you, Heinz? Lindner presses the earpiece tight against his ear and replies using the agreed call sign. Is that you, Vic? Ready for your report. Item 1. Potential target. The Klingenberg Power Plant. It remains operational and is still providing power to defence industries.

9:20Roger. Item 2. An attack on the marshalling yard could paralyze the rail system. 26. Repeat 26 freight trains and 1818 passenger trains are currently stationed there. Roger. Item 3. Low on supplies. Request airdrop. No more items. Over. Roger and out.

9:48Five weeks later, April 21st, 1945, 3am. Berlin is collapsing. The Soviet Red Army has arrived and the final battle with the Nazis is underway. Streets are shattered, buildings burn, and in the northeast of the city, through the darkness, Paul Lindner moves carefully, keeping to the shadows. He carries the OSS radio handset with him, but if he's caught with it by either side, he risks imprisonment and execution. The Nazis will think he's a spy, and the Soviets will think he's a German resistance fighter. So he's heading to the address of a safe house he memorised before leaving London. A man's face appears in the half-open doorway.

10:41Lindner whispers the password. Sonia. Lindner is pulled inside without another word.

10:53He follows the man through the house and out into the rear allotment, where they stop between a plum tree and a chicken coop. The man nods to the soil at their feet. This is the place. Then, with the man's help, Lindner buries the top-secret handset in the ground.

11:22Nine days later, the battle for Berlin is almost over. Soviet troops control most of the city. A Red Army officer stands outside the safe house. Once again, the man who lives there leads the stranger through the house and to the allotment at the back And finally to the spot between the plum tree and the chicken coop The army officer begins to dig And, within moments, he has found what he came for The OSS handset is recovered The officer inspects it briefly then hands over a receipt and heads back into the night. America's new spy communication system is now in Soviet hands and on its way to its military intelligence agency, the GRU, which will unlock its high-tech secrets and then deploy them in the service of the motherland.

12:33One week later, May 8th, 1945, Summertown, Oxfordshire. Inside her home, Ursula stands at a table and finishes filling a Victoria sponge cake, aided by her daughter Nina. Careful, spread it evenly. That's it. Job done Ursula lifts the cake and carries it outside Where neighbours have set up long tables along the street to celebrate VE Day The war in Europe is over Germany has surrendered Nazi leader Adolf Hitler has taken his own life And Berlin is under Soviet control Across Britain, people are celebrating A neighbour waves Ursula towards one of the tables. What a wonderful-looking cake. Here, put it next to the scones.

13:31Can you believe it, Ursula? The war is finally over and life can return to normal. I'm so happy. It is a truly wonderful moment. Ursula shares her neighbour's joy, but she has more to celebrate than most. The center has confirmed the success of her last mission. The OSS's secret communication system is now in Soviet hands. Her agent, Klaus Fox, is in America, feeding Moscow the secrets of the US atomic bomb project. And her home city, Berlin, is finally under communist rule. Meanwhile, her network of spies in Britain have, so far, evaded the attention of the British security service, MI5 But while the Britons around her celebrate the end of the war with Germany Ursula is already looking forward to the future Because now the Nazis are defeated She can finally refocus on the ultimate goal Of bringing down capitalism

14:48Autumn 1946 Great Rollwright, the Cotswolds, Oxfordshire One year after the end of World War II Ursula cycles out of the village and along a quiet country lane She passes beneath a railway bridge Continues to a crossroads then stops counting the line of trees. Two, three, four. At the fourth tree, she kneels and reaches into the hollow at its base. The dead drop site is empty. No message, no money, no signal from Moscow. Four weeks ago, Ursula's Soviet handler failed to show at a meeting in London. In the event of this happening, someone else is supposed to leave a message for her here. She's checked the dead drop site several times since then, but it has always been empty.

15:52And her instructions are clear. If contact is broken due to the risk of compromise, she must not attempt to re-establish contact with the centre by radio. She turns around and begins to cycle back home, checking over her shoulder to see if anyone has seen her. With no contact from Moscow, she has no orders and no money. But its loss also signals something far more worrying. It could well mean that the British Security Service is closing in on her and her network.

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18:02August 1947, nearly one year later, Rugby Mansions, West London. Ursula's former agent, Alexander Foote, looks out of the window at the tree-lined street and can almost taste freedom. He's been in Moscow since the end of the war, but persistent interrogations by the GRU have stripped away any remaining belief he had in the Soviet system. A few days ago, en route to a new foreign posting, he turned himself over to Britain's secret intelligence service, also known as MI6. Foote readies himself as an MI6 officer switches on a tape recorder and resumes his interrogation. Let's go over your time in Munich during the war again.

18:51You said you were part of a Russian spy ring run out of Switzerland. Yes, that's correct. Foote wants to defect, and to do that, he needs to gain the trust of MI6 and convince them he's not a double agent sent by Moscow to infiltrate British intelligence. So he'll need to tell them everything he knows, and that could put others at risk. Where in Switzerland was the ring's leader? Co-sur-Montreau, near Lake Geneva. And what was his name? He was a she. A woman. A woman? Yes. What was her name? Foot pauses. If he can't convince MI6 he is genuine, they will send him back to Moscow, where a gulag or worse will await him.

19:38But while his loyalty to the centre is gone, he still feels loyal to the people he worked with during the war. Ursula Burton. Burton? That's her name now. She married one of the agents for a British passport. And is she still active? No. Really? Why is that? Foot frames his answer carefully, hoping to protect Ursula while preserving his own credibility. She felt betrayed by the Soviet Nazi pact. She left Switzerland as soon as possible and came to England to put it all behind her. So she was disillusioned with communism. Yes, especially after Russia invaded Finland. She considered it a naked act of aggression.

20:26It made her see Stalin for who he was, another dictator. I wish I'd had the same clear-sightedness a bit sooner myself. Thank you, Mr. Foot. You've been most helpful. I think we can take a break.

20:45A month later, Great Rollwright, the Cotswolds. In her farmhouse cottage kitchen, Ursula is mixing a cake for her son Peter's fourth birthday when there's a knock at the door. She wipes her hands on her apron and goes to open it. three men stand outside a uniformed policeman and two in civilian clothes one of the civilians wears a trilby hat and mackintosh a pipe hangs from the corner of his mouth the policeman removes his helmet good day mrs burton i am detective constable herbert of chipping norton police station these gentlemen would like to speak with you may we come in now Wow. I'm in the middle of baking a cake.

21:34I best suppose you're going to want to come in anyway. She ushers the three men into the living room. But before she can ask them to sit, the man with the hat removes his pipe and starts talking. I'm Mr. Sneddon and this is my colleague, Mr. Savile. We know you used to be a Russian agent until the Finnish war disillusioned you. we're aware that you haven't been active in England and we are not here to arrest you. If his intention was to wrong foot Ursula it has the opposite effect. She's been expecting the knock at the door ever since becoming a spy but she didn't expect it to be quite so comical.

22:17Would you like a cup of tea, Constable? Yes, please. Milk and two sugars. And Mr Sneddon? Well, go on then. Yes, please. and Savile will have one too.

22:36Moments later, Ursula pours tea, sits and looks expectantly at Sneddon. So, are you going to tell me what this is about? It's about your time in Switzerland. We know you became disillusioned with communism and are now a loyal British subject. so there's nothing to fear if you cooperate and tell us about your activities there I am a loyal British subject now but that doesn't oblige me to speak about my past I am quite happy to talk about my years in England I've been very happy here she sees Ned and watch her as she glances through the window to where Len is working in the garden Why refuse to tell us about it if you've done nothing wrong?

23:26We have information about what you were doing from a leak in Russian intelligence. We just need you to clear up a few ambiguities. I'm afraid I can't help you. I don't intend to tell lies and therefore I prefer not to answer your questions. Shall I fetch my husband?

23:50Len, we have visitors!

24:01Minutes later, Bjerton joins them from the garden and Ursula excuses herself. I was about to put a cake in the oven when you arrived. Would you mind if I did that while you speak to Len? Then, Sneddon looks a little put out, but she goes back to the kitchen anyway and listens through the open door as she spoons cake mixture into a tin. Mr. Puritan, I understand you knew Alexander Foot. Footy, yes. What's he doing nowadays? Ursula puts the cake in the oven and returns to the men with a fresh pot of tea. Top up, anyone? Mr. Sneddon? Thank you. Mrs. Beerton, your loyalty to your former employers is understandable, but you know it would not be reciprocated.

24:54My loyalties are to ideals, not people. But you are anti-communist now. I wouldn't describe myself as anti-communist, but I don't see any contradiction between being a loyal British subject and holding left-wing views. You may not, Mrs. Beerton, but if you don't come clean, others in your family may come under suspicion. Ursula doesn't answer, and Sneddon picks up his hat and pipe and prepares to leave. If you change your mind about talking, get in touch with Detective Herbert.

25:36Ursula shows the three men out, and just as they are about to leave, Saville, who has remained quiet throughout the exchange, speaks for the first time. It's beautiful here. It must be lovely living like this. I shouldn't mind it. If the observation is supposed to be a threat to her established way of life, Ursula ignores it. That could be arranged. I happen to be looking for a lodger.

26:14Late 1947, Great Rollwright. It's early morning when Ursula hears the post arriving and leaves her bedroom to retrieve it. As she passes along the landing, she glances through an open door at her sleeping father. Robert Kaczynski has been living with the family for the past three months since Ursula's mother died, but his cancer is in its final stages. She knows it won't be long before she loses him too. In the hallway, she sorts through the post and spots a letter from Berlin. She tears it open. The paper has been folded more than once. MI5 have not been back, but Ursula suspects they are monitoring her mail and movements.

27:08Not that she's been doing much of anything since Moscow ceased communication more than a year ago. She takes the letter to the kitchen, where Len is sitting, smoking and staring into space. It's starting to rain, and Ursula shivers in the early morning chill, wishing the money from the centre hadn't dried up. With just Len's wages from his job at the aluminium factory to live off, they can't afford to heat the house properly. She sits and moves her chair close to Len, so that the lodger they have taken in to help with the bills will not overhear her. I've had a letter from Jürgen. Her brother moved to East Berlin at the end of the war and is working there as an academic.

27:56He's suggesting we move out there, Len. It's a possibility. What do you think? I don't speak very good German. She gets up and goes to the window, looking out as heavy rain falls outside. Len is increasingly depressed these days and can only see the negatives. But for her, East Berlin sounds like the new communist utopia she always dreamed of, and moving there would mean getting rid of MI5 for good. Leaving won't be easy. She's already forced her young family to move several times over, and finally they're settled. She's not sure she can bring herself to uproot them again.

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28:49Hey, Dan Taberski here. I'm a podcast host, a journalist, and now with my newest project, the author of my own manifesto. Well, it's a manifesto about manifestos. My search for inspiration in a world that feels more infuriating, more out of its freaking mind with each passing hour. Manifestos are a call to action, an artful scream. They capture our anger and they try to do something with it. This is my attempt to take the Manifesto back from mass shooters and nihilists and return it to its rightful place with the warriors, the visionaries, the regular folks with just the right amount of crazy.

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30:26January 1949, Prague. Just over a year since receiving Jürgen's letter, Ursula is meeting her brother in Czechoslovakia while he is there on academic business. Jürgen, it's so good to see you. She embraces him warmly. You too? I'm sorry, but I haven't got long. Shall we walk? She falls into step beside him, disappointed by the cool reception, despite knowing that Jürgen has never been one for emotion. I was hoping I might visit you in East Germany, but my visitor's visa was refused. That's how it is. Only people on official business are allowed in. The risk of spies getting into the East on false pretenses is too great.

31:15That's why I suggested you meet me here. I'd still like to see it for myself. Is there no way around that for someone like me? You'd need approval from the center. and how... I'm sorry, I've just seen the time. I'm going to have to go. But it was good to see you. Ursula remains where she is, trying to decide what to do next as her brother rushes off to his meeting. She came all this way not just to see him, but to ask for his help should she need to leave Britain in a hurry. And now that she's here, she's not going to leave empty-handed.

32:00Moments later, Ursula walks towards the Soviet embassy, and she's about to break with protocol. In her bag is an envelope addressed to the Soviet military attaché. Inside is a note to the center asking for permission to visit Berlin and reminding them how to contact her. She stops at regular intervals, making sure she's not being followed. It's quite possible that the British have alerted MI6 to her travel plans and someone is keeping tabs on her. But this could be her only chance to re-establish contact with Moscow.

32:43She arrives at the embassy, delivers her letter and walks away briskly.

32:55One year later, January 1950, Great Rollwright. Ursula cycles carefully on the icy road to the dead drop site beyond the railway bridge. Earlier in the winter, Len skidded on the ice, falling from his motorbike, breaking his leg and losing his job as a result. The family is desperate for money, so Ursula keeps checking the site, more out of hope than anything else She leans her bike against the tree and reaches into the hollow at its roots There's an envelope inside, at last Ursula tears it open with icy fingers Inside is some cash and a message from the centre Moscow has granted her permission to visit East Berlin.

33:50She is finally coming in from the cold.

33:56A month later, Great Rollwright. Ursula opens the front door and picks up the milk bottles and her copy of the Oxford Times. She glances at the front page as she walks to the kitchen, but stops in her tracks. On the front page is a photograph of her former agent, Klaus Fuchs. Beneath that, the headline, German atomic scientist arrested. She sits and reads the article, trying to work out if his arrest spells danger for her. She's been careful. He only knows her as Sonia, and he doesn't know where she lives or any details of her life. Even under interrogation, there is only so much he can reveal.

34:46But as she reads on, her heart skips a beat. The report says Fox passed atomic secrets to Moscow by meeting a foreign woman with black hair in Banbury. It won't be long now before MI5 joins the dots. And when they do, she has no intention of being here.

35:17A month later, February 1950, Great Rollwright. In her bedroom, Ursula packs clothes for herself and the children into four large kit bags. She adds a couple of Chinese prints from her time in Shanghai, a postcard from Switzerland, and a framed photograph of Richard, the man who recruited her. Her life, as a spy, zipped into a few bags. She's received approval to go to East Berlin and is preparing for departure. She's already burned every potentially incriminating item in the house, and that leaves just one more thing to get rid of. She goes downstairs, intending to remove her radio transmitter from the cellar.

36:07But her lodger is sitting nearby. As Ursula approaches, she begins her habitual, nosy round of questioning. Have you been packing? I keep thinking that it's odd that the school is happy for you to take the children out during term time. Will it be very cold there? I've noticed you're taking a lot of clothes for a holiday. It's not really a holiday. I have to deal with my father's estate. and since Len's broken his leg, I can hardly leave him to care for the children. Ursula knows that her lodger likes to gossip. If she's going to spread the news that she's taking the children away, then she needs to give her a cast-iron reason.

36:53She also needs her out of the house so that she can clear the cellar. You're right, and I probably am taking too much with me, but I'm not sure how long it will all take. Best to be prepared. But there's so much to do. I was wondering, do you think you could help me with some of the washing? There's a basket in the kitchen which needs hanging out to dry. Of course. The lodger puts her book down and goes through to the back of the house, allowing Ursula to head down to the cellar. Here, she retrieves the radio, wraps it in sacking, then heads outside. She carries it quickly to the nearby woods.

37:41Then she buries the last remaining piece of evidence that she has ever been a Soviet spy.

37:59Three months later, East Berlin. Ursula sits at a table in an apartment with a GRU officer sent from Moscow. It is International Workers' Day and she's been invited for a celebratory, if modest, meal. Bratwurst with potato salad and sauerkraut and a glass of Rotkepien sparkling wine. Tell me, Mrs. Burtin, are you enjoying life here in East Germany? Ursula pushes the brat first onto her fork and decides to give an honest answer. My apartment is cold, cramped, and rather drab. A bit like this one. She gestures at the beige-colored walls stained with damp. But I am happy to no longer be leading a double life.

38:49And how were your last years in England? Honestly, they were not easy. I had no contact with the center, no instructions, and no purpose. That was an error on the center's part. The agent got the wrong dead drop site. He thought it was the fourth tree after the railway bridge, not the fourth one after the crossroads after the bridge, as you explained in your letter. Thankfully, you were able to get in touch, and here you are. He raises his glass and touches it to hers. and I am here on behalf of the Centre to congratulate you on your work in China, Poland, Switzerland and finally Britain where you were key in helping the Soviet Union build its own nuclear bomb.

39:39I was just doing my job and that helped the Soviet Union to where it is now but Comrade Stalin has warned that the capitalist West is preparing for conflict possibly nuclear. Already warring Korea seems likely, and the GRU will play a major role. So when will you be ready to resume your duties? Ursula pushes her plate away. I do not wish to continue spying. The officer blinks in disbelief. Service to Soviet intelligence is not something one simply walks away from, Major. It's a commitment. for as long as the revolution continues. I remain committed to the Soviet Union and that struggle, but my nerves and my concentration are not what they were.

40:31Twenty years is enough. I want to stay here, in Berlin, but I don't wish to spy anymore. Ursula stands and walks over to the window, where the afternoon spring sunshine is just beginning to filter through. After years of operating in the shadows, the time has come for her to emerge and lead an ordinary life.

41:04In a rare move, the GRU agreed to let Ursula leave the service. She was later joined by her husband Len and her eldest son Miesche in East Berlin. There she reinvented herself as a successful children's author, using the pen name Ruth Werner. By then she had secured her place as one of the USSR's most important spies, recruiting more agents than almost anyone in the history of Soviet military intelligence. She played a central role in helping Moscow obtain the secrets that accelerated its atomic bomb program and rose to become the highest-ranking female officer in the GRU. But the communist utopia she had believed in never matched the reality of life in East Germany.

41:56There, the woman who had spied for over 20 years found herself living under constant surveillance, watched by the Stasi, questioned about her loyalties, and increasingly troubled by the repression and dishonesty of the system she served. Over time, and especially after the revelations about Stalin's crimes and the USSR's later crises, she concluded that socialism, as built in the Soviet bloc, was deeply flawed. Ursula outlived all the men she had loved. She saw the Berlin Wall rise and fall and lived long enough to watch the communist world collapse before she died in July 2000 at the age of 93.

42:46The man who first recruited her in Shanghai, whose photo she kept throughout her life and whom she knew as Richard Johnson, was in fact Richard Zorger, one of the greatest spies of the 20th century. Next time on The Spy Who, Charlie Hickson talks to former CIA officer Anne E Butler to find out how she raised five kids while living a double life as an undercover spy.

43:24Follow The Spy Who on the Audible app or wherever you get your podcasts. You can listen to all episodes of The Spy Who ad-free by joining Audible. you've been listening to the spy who an audible original if you'd like to know more about klaus fuchs and the atomic secrets he passed to moscow you can hear his story in season seven of the spy who the spy who started the cold war have you got a spy story you'd like us to tell Email your ideas to thespywho at audible.com. A quick note about the scenes you've been hearing. In most cases, we can't know exactly what was said. Those scenes are dramatizations, but they're based on the best available sources.

44:16We used many sources in our research for this season, including Agent Sonia by Ben McIntyre and Sonia's report by Ursula Kaczynski. The Spy Who was hosted by me, Amelia Fox Produced by Audible with Yellow Ant This episode was written by Lizzie Enfield and researched by Louise Byrne With thanks to Kat Whitehouse and Inna Bruce The senior producer was Jay Priest The sound designer was Joshua Morales The lead sound designer was Damien Pace For Yellowant, the story editor and executive producer was Tristan Donovan. For Audible, the executive producers were Estelle Doyle and Theodora Leloudis. Head of Production, Audible Europe, Chris Jones.

45:09Senior Director of Originals, Lisa Higginson. Head of Audible Originals International, Aurélie de Troyes. Sound Recording Copyright 2026 by Audible Limited. you

From the publisher

With the Nazis in retreat, the U.S. hopes to get spies on the ground in Berlin before the Soviets take the city. But Ursula Kuczynski has different plans. She’s going to co-opt the American mission to give Stalin an edge in the coming Cold War between capitalist and communism.

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