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Expanse

Expanse

ABC Australia 42 episodes Latest Apr 28, 2026

Expanse is an award-winning podcast from ABC Australia that investigates big stories from across the continent. Season 6, 'The Nannup Four,' explores the mysterious disappearance of four people from a farmhouse in Western Australia in 2007. Host Dominique Bayens delves into the bizarre circumstances, including hidden identities and rumors of a dark online cult. The series examines the impact on those left behind and the lingering questions about what really happened.

Episodes

Behind the scenes | S6 host Dominique Bayens in conversation Apr 27, 2026 0:20:22 What goes into making a season of Expanse? What considerations are made when telling the stories of people's lives? Host of Expanse: The Nannup Four, Dominique Bayens, sits down with fellow podcast host Phil Vine to take you behind the curtain.
BONUS | Inside the Nannup Four police investigation Apr 20, 2026 0:26:24 It has been months in the making, but police are opening up the files on the missing Nannup Four for Expanse host Dominique Bayens, and there's news on another search. 
BONUS | Who was Tony Popic? Apr 13, 2026 0:24:12 Since the podcast started rolling out, a lot of people have got in touch with information. Two people have been able to shed light on some previously unknown parts of the story. 
06 Expanse: The Nannup Four | Northcliffe Apr 6, 2026 0:35:26 A family friend and former policeman continues to search for answers for Jim and Cath McDougall decades after the Nannup four vanished. The family and friends of Chantelle McDougall try to find their own answers, as one last glimmer of hope emerges. 
05 Expanse: The Nannup Four | Simon says Mar 30, 2026 0:36:04 Jim and Cath McDougall are left reeling as the true depth of Simon Kadwill’s deception is revealed. Dominique tracks down people from his past, and hears from someone who has never spoken before who provides a startling insight into how Simon might have ended up on the path he did.   
04 Expanse: The Nannup Four | A question of belief Mar 23, 2026 0:34:18 Tony Popic is talking about an end of days, Simon is seeing spirits and Chantelle is forced into a difficult decision as increasingly troubling hints something's not right come to light. 
03 Expanse: The Nannup Four | Down the rabbit hole Mar 16, 2026 0:33:17 Dominique travels across the country to meet the two people who might be able to help her understand how Chantelle came to be living a reclusive life in a hidden corner of Western Australia, alongside a self-styled spiritual guru 18 years her senior.   
02 Expanse: The Nannup Four | Selling snake oil Mar 9, 2026 0:30:08 A chance encounter in the streets of Melbourne in 1998 leaves a friend wondering what Chantelle McDougall has been pulled into. Dominique hears about the escalating pattern of control Simon Kadwill exercises over Chantelle.If you can add to this story, or have information you think might be important, please get in touch by emailing expanse.abc@proton.me.In this episode, we cover
01 Expanse: The Nannup Four | The people in the blue house Mar 2, 2026 0:30:11 When three adults and a child disappear without a trace from the isolated bush community of Nannup in 2007, it sparks disturbing theories about what might have happened. What was going on in the little blue house, and could understanding that hold the key to the disappearance?Host Dominique Bayens starts unpicking the rumours of cults, hidden identities and bizarre behaviour.If y
INTRODUCING — Expanse: The Nannup Four Feb 23, 2026 0:03:31 When four people disappeared from a blue farmhouse on the outskirts of the Western Australian town of Nannup in 2007, they left behind the scatterings of a life, a note pinned to their door and a question: was the disappearance a choice... or murder? In season six of ABC’s multi-award winning Expanse podcast, host Dominique Bayens investigates how those left behind have come to t
BONUS Expanse: Nowhere Man | Gunslinger Aug 19, 2025 0:23:29 The search for Robert Bogucki brought together a cast of colourful characters, including a cigar-toting, moustachioed American named Garrison ‘Gunslinger’ St Clair.    
06 Expanse: Nowhere Man | Lost and found Aug 5, 2025 0:33:04 A quarter of a century after he survived the Great Sandy Desert, Robert Bogucki is back for an odd-couple road trip with the Aboriginal tracker who helped search for him all those years ago. 

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