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37 episodes

02 Expanse: The Nannup Four | Selling snake oil
09/03/2026 | 30 mins.
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 [email protected].
In this episode, we cover topics like:
Chantelle McDougall and her daughter 5-year-old Leela vanished from Nannup, Western Australia in 2007, while entwined in the "Truth Fellowship" cult.
Who are the missing people who disappeared into this cult?
The baffling mystery of a cult Nannup family of four who disappeared in 2007. What happened to them?
Four people who were part of an online doomsday cult disappeared from a small Australian town.
The 2007 disappearances of the "Truth Fellowship" Cult: Simon Kadwill, 45, Chantelle McDougall, 27, Leela McDougall, 5, and Tony Popic, 40
Missing people who have disappeared into cults?
Baffling mystery of a cult Nannup family of four who disappeared in 2007. What happened to them?
How can four people just vanish? Odd tales emerge in Nannup case.
01 Expanse: The Nannup Four | The people in the blue house
02/03/2026 | 30 mins.
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 this story, or have information you think might be important please get in touch by emailing [email protected].
In this episode we cover topics like:
Chantelle McDougall and her daughter 5 year old Leela vanished from Nannup, Western Australia in 2007, while entwined in the "Truth Fellowship" cult.
Who are the missing people who disappeared into this cult?
The baffling mystery of a cult Nannup family of four who disappeared in 2007. What happened to them?
Four people who were part of an online doomsday cult disappeared from a small Australian town.
The 2007 disappearances of the "Truth Fellowship" Cult: Simon Kadwill, 45, Chantelle McDougall, 27, Leela McDougall, 5, and Tony Popic, 40
Missing people who have disappeared into cults?
Baffling mystery of a cult Nannup family of four who disappeared in 2007. What happened to them?
How can four people just vanish? Odd tales emerge in Nannup case
INTRODUCING — Expanse: The Nannup Four
23/02/2026 | 3 mins.
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 happened.
PRESENTS — The Challenger Legacy
27/01/2026 | 20 mins.
Forty years ago this January, the Space Shuttle Challenger disintegrated on its way into orbit. All seven astronauts on board were killed.
In the days after the tragedy, the world wanted answers. What really caused the shuttle to explode? And should the launch have been stopped altogether?
For season five of Science Friction, Dr Karl Kruszelnicki and Fiona Pepper investigate how the Challenger disaster unfolded — and what that has meant for space exploration from 1986 to now.
The Challenger Legacy is a five-part series from Science Friction. Out now — search Science Friction and The Challenger Legacy.
PRESENTS – The Case Of
21/08/2025 | 1 mins.
It's the trial everyone in Darwin is talking about. In February 2022, a helicopter on a crocodile egg collection mission crashed in remote Arnhem Land, killing the egg collector and paralysing the pilot.

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About Expanse

Season 6 Expanse: The Nannup Four with Dominique Bayens In 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 disappearance, speaking to the people left behind - who still question what they could have done differently. Because when something like this happens, and you're left staring back, how do you live with the choices you've made? Expanse is an internationally award-winning podcast that explores big stories from across Australia — a vast continent where anything can happen. In Series 5: Nowhere Man, Erin Parke followed the story of a young American who dumped his bicycle and walked out into the Great Sandy Desert in remote northern Australia. He was an Alaskan firefighter, seemingly with everything to live for. So why did he risk it all to go into the wilderness alone? And how do you search for someone who doesn't want to be found? In Series 4: Uncropped, host Danielle O'Neal goes from a mosquito-laden lagoon in far north Queensland to the Australian government's classified UFO files, to the US Congress as she seeks to understand what happened, its legacy and why believable people say seemingly unbelievable things. Spies in the Outback (Series 3) won the Excellence in Radio Broadcasting award at the Northern Territory Media Awards in 2024 for the story of Pine Gap, a secret US/Australian defence base hidden in the outback. From the Dead (Series 2) won silver in the Documentary: History category at the New York Radio Festival awards. It delves into a wild tale of survival at sea off Tasmania's rugged southwest coast. Pink Diamond Heist (Series 1) was shortlisted in the New York Radio Awards, Documentary: History category. This season takes you on a rollicking ride through Western Australia on the trail of a diamond heist.

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