ABC Australia

Expanse

History EN ↓ 43 episodes

Season 6 Expanse: The Nannup Four with Dominique BayensIn 2007 four people disappeared from a blue farmhouse on the outskirts of the Western Australian town of Nannup, leaving behind the scatterings of a life, a note pinned to the door and a question: was the disappearance a choice… or murder? As police and family try to piece the puzzle together to find the Nannup Four, what emerges is a bizarre story of secrets, hidden identities and rumours of a dark online cult. In season six of ABC's award-winning Expanse podcast, host Dominique Bayens investigates the unsettling circumstances around the...

Author

ABC Australia

Category

History

Podcast website

www.abc.net.au

Latest episode

Jun 18, 2026

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Episodes

UPDATE | Expanse: The Nannup Four - Hope on the horizon 18.06.2026

Host of season 6, Expanse: The Nannup Four, Dominique Bayens has been following the developments of the case of four people who disappeared from the isolated town of Nannup. 

Behind the scenes | S6 host Dominique Bayens in conversation 27.04.2026

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 20.04.2026

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? 13.04.2026

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 06.04.2026

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 30.03.2026

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 23.03.2026

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 16.03.2026

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 09.03.2026

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 topics like: Ch...

01 Expanse: The Nannup Four | The people in the blue house 02.03.2026

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 you can add to th...

INTRODUCING — Expanse: The Nannup Four 23.02.2026

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 terms with what ha...

BONUS Expanse: Nowhere Man | Gunslinger 19.08.2025

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 05.08.2025

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. 

05 Expanse: Nowhere Man | Miracle in the desert 29.07.2025

After almost six weeks in the desert, Robert Bogucki is found alive in what quickly becomes known as ‘The miracle in the desert’. But now he has to survive the tabloid television treatment and a fierce public backlash.

04 Expanse: Nowhere Man | Alaska 22.07.2025

After years obsessing over the case, Erin Parke has made contact with the elusive and enigmatic Robert Bogucki.  

03 Expanse: Nowhere Man | The green berets 15.07.2025

Robert Bogucki has been given up for dead, but the drama’s only just beginning.  

02 Expanse: Nowhere Man | Trackers 08.07.2025

The clock is ticking to bring Robert Bogucki out of the desert alive, and police turn to Aboriginal trackers to try to find their man.

01 Expanse: Nowhere Man | Ghost in the desert 01.07.2025

When a bicycle is found abandoned on a remote track in the Great Sandy Desert it triggers an urgent search. Who is this mystery man and why has he walked into one of Australia’s deadliest landscapes?  

INTRODUCING — Expanse: Nowhere Man 24.06.2025

It’s 1999, and a young American man is missing in the Australian outback. Police soon realise there’s something very strange about this case – the man appears to have plunged into the desert on purpose, and seemingly doesn’t want to be found.

05 Uncropped | The legacy 25.11.2024

A bombshell is dropped in US Congress that makes a lot of people start thinking about UFOs, now called UAP, differently. Danielle O’Neal tries to understand the implications of everything she’s heard and grapples with the unanswered questions.  

04 Uncropped | UAP in the USA 25.11.2024

Despite an alarming coincidence being uncovered in the government’s UFO files, a young intelligence officer recommends the files are closed and investigations shut down. Decades on, while the U.S. is taking a serious look at unexplained aerial phenomena (UAP) the legacy of that decision has kept UFOs in the sneered-at periphery in Australia.  

03 Uncropped | The UFO files 25.11.2024

The Tully phenomena spreads, with unexplained circles starting to crop up around the country. Reports of them all are filed away by the RAAF in the secret UFO files. But, one young UFO researcher is determined to get access to those files and see just what they hold.  

02 Uncropped | Who is visiting? 18.11.2024

Hoards of people descend on the Pennisi property to take a look at this ‘saucer nest’, sending the family running for cover. Turns out, in the years to come that would be the least of their worries. Rumours of covert surveillance and odd happenings leave the people at the heart of this mystery looking over their shoulders.  

01 Uncropped | The sighting 18.11.2024

On a hot morning under blue skies, a young banana farmer saw something he couldn’t explain that sent his pulse racing. It looked like a flying saucer and it left behind a mysterious mark. The chain of events it set off would change everything.  

INTRODUCING – Expanse S4: Uncropped 11.11.2024

In 1966 a Queensland farmer thought he saw a UFO that left behind a real physical mark in some reeds. That sighting set off a chain of events that would haunt him for decades and leave a lot of unanswered questions.   Danielle O’Neal delves into what happens when people say seemingly unbelievable things.

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