In the final episode of the series, is the 40-year game of cat-and-mouse nearly over?

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Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Additional production: Imy Harper

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

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In this episode, Chloe looks into what happened to The Gas Man when he arrived back in Germany as a fugitive – and investigates whether his trade with Iran ever really ended

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Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Additional reporting: Marten Hahn

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

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Chloe makes a startling discovery about another chemical trafficker that has consequences for her investigation. A Kurdish survivor of mustard gas shares her story.

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Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

Hosted on Acast. See acast.com/privacy for more information.

The team persuades The Gas Man to step out from the shadows. He reveals the first big clue in the investigation to how he got away with it – and makes a surprising claim about his role in the case

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Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

Hosted on Acast. See acast.com/privacy for more information.

Special Agent Bass has his target in his sights but he’s on another continent. If he wants him to talk he’ll need a clever plan – and maybe a bit of luck

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Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

FX credit: Boeing 737-800 Fly Over 3.wav by soundslikewillem at freesound

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In the 1980s Special Agent Dennis Bass received a tip-off that changed the course of his career. 30 years on reporter Chloe Hadjimatheou sets out to solve the mystery of how an international fugitive got away with his crimes – and why he's still on the run.

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If you want to get in touch with us directly about a story, or tell us more about the stories you want to hear about contact [email protected]

Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

FX credit: Telex by YleArkisto at freesound - License: Attribution 4.0

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Introducing...The Gas Man

It starts with a tip-off. 

It’s the late 1980s and US Special Agent Dennis Bass is warned about a shipment of suspicious chemicals headed to a secret destination. So he follows the lead – and ends up stumbling into a global plot helping fuel a war. The main suspect? The Gas Man. 

In the decades since, Special Agent Bass has been locked in an international game of cat and mouse with the man who supplied a dangerous regime with the chemicals to make weapons. Every time Bass thinks he’s got his hands on him… The Gas Man somehow manages to slip the net. And he’s still on the run today.

But after more than 30 years, could his past finally be catching up with The Gas Man?

To find out more about Tortoise:

Download the Tortoise app - for a listening experience curated by our journalists

Subscribe to Tortoise+ on Apple Podcasts for early access and ad-free content

Become a member and get access to all of Tortoise's premium audio offerings and more

If you want to get in touch with us directly about a story, or tell us more about the stories you want to hear about contact [email protected]

Reporter: Chloe Hadjimatheou 

Producer: Claudia Williams

Editor: Jasper Corbett

Narrative editor: Gary Marshall

Sound design: Hannah Varrall

Original theme music: Tom Kinsella

Original artwork: Jon Hill

Hosted on Acast. See acast.com/privacy for more information.