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by ABC Australia
Season 7 Expanse: Disappearing in the Devil's Triangle The Barrington Tops is rugged and unforgiving. With impenetrable bush and towering mountains, it eats up people and planes. It's sometimes called the 'Devil's Triangle'. And it guards a mystery that hasn't been answered in 45 years. On a freezing night in August 1981, a small six-seater plane vanished. The pilot's panicked call, '5000!', was the last anyone would hear of the five men on board. As the search for wreckage grew more desperate, odd details emerged. Unsettling questions arose about what exactly these men were doing, where they were going and why, on a dark night, were they flying into such dangerous place? In season seven of the ABC’s multi-award-winning Expanse podcast, host Keely Johnson uncovers conspiracy, desperation, and rumours of a cover-up as she investigates how a plane carrying five men can just... vanish. Are all the stories true... Or is this a case that shows us just how far we’ll go to explain the unknown? This season is a descent into obsession, grief, and the relentless pull of unanswered questions. Expanse is an internationally award-winning podcast that explores big stories from across Australia — a vast continent where anything can happen. The Nannup Four (Season 6) is a haunting investigation into the 2007 unsolved disappearance of four people, including a child, from the isolated WA town of Nannup, amid rumours of a cult-inspired murder/suicide. Nowhere Man (Season 5) is a story spanning three decades, two continents and a cast of colourful characters as host Erin Parke investigates why someone with everything to live for would gamble with death in one of Australia's deadliest landscapes. Uncropped (Season 4) starts in 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 (Season 3) unpacks the story of Pine Gap, a secret US/Australian defence base hidden in the outback, which has shaped a place, a town, and people. And might now be shaping far more than that in conflicts across the world. From the Dead (Season 2) delves into a wild tale of survival at sea off Tasmania's rugged southwest coast, to find out how someone thrown into the unimaginable can survive the unsurvivable. Pink Diamond Heist (Season 1) takes you on a rollicking ride through Western Australia on the trail of a diamond heist. How do you pull off the perfect heist?
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- 1 weeks ago3 min
INTRODUCING | Disappearing in the Devil's Triangle
The Barrington Tops is rugged and unforgiving. With impenetrable bush and towering mountains, it eats up people and planes. It’s sometimes called the ‘Devil’s Triangle’. And it guards a mystery that hasn’t been answered in 45 years.
- 4 weeks ago24 min
UPDATE | Expanse: The Nannup Four - A new search
It's been a busy few months for host Dominique Bayens, working alongside search organisers and chasing down loose ends. It all comes together with some crucial new information coming to light as a community-led search for the missing Nannup four kicks off.
- Jun 18, 2026
UPDATE | Expanse: The Nannup Four - Hope on the horizon
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.
- Apr 27, 202620 min
Behind the scenes | S6 host Dominique Bayens in conversation
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.
- Apr 20, 202626 min
BONUS | Inside the Nannup Four police investigation
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.
- Apr 13, 202624 min
BONUS | Who was Tony Popic?
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.
- Apr 6, 202635 min
06 Expanse: The Nannup Four | Northcliffe
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.
- Mar 30, 202636 min
05 Expanse: The Nannup Four | Simon says
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.
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About Expanse
Season 7 Expanse: Disappearing in the Devil's Triangle The Barrington Tops is rugged and unforgiving. With impenetrable bush and towering mountains, it eats up people and planes. It's sometimes called the 'Devil's Triangle'. And it guards a mystery that hasn't been answered in 45 years. On a freezing night in August 1981, a small six-seater plane vanished. The pilot's panicked call, '5000!', was the last anyone would hear of the five men on board. As the search for wreckage grew more desperate, odd details emerged. Unsettling questions arose about what exactly these men were doing, where they were going and why, on a dark night, were they flying into such dangerous place? In season seven of the ABC’s multi-award-winning Expanse podcast, host Keely Johnson uncovers conspiracy, desperation, and rumours of a cover-up as she investigates how a plane carrying five men can just... vanish. Are all the stories true... Or is this a case that shows us just how far we’ll go to explain the unknown? This season is a descent into obsession, grief, and the relentless pull of unanswered questions. Expanse is an internationally award-winning podcast that explores big stories from across Australia — a vast continent where anything can happen. The Nannup Four (Season 6) is a haunting investigation into the 2007 unsolved disappearance of four people, including a child, from the isolated WA town of Nannup, amid rumours of a cult-inspired murder/suicide. Nowhere Man (Season 5) is a story spanning three decades, two continents and a cast of colourful characters as host Erin Parke investigates why someone with everything to live for would gamble with death in one of Australia's deadliest landscapes. Uncropped (Season 4) starts in 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 (Season 3) unpacks the story of Pine Gap, a secret US/Australian defence base hidden in the outback, which has shaped a place, a town, and people. And might now be shaping far more than that in conflicts across the world. From the Dead (Season 2) delves into a wild tale of survival at sea off Tasmania's rugged southwest coast, to find out how someone thrown into the unimaginable can survive the unsurvivable. Pink Diamond Heist (Season 1) takes you on a rollicking ride through Western Australia on the trail of a diamond heist. How do you pull off the perfect heist?
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