The brand new season of hit true crime podcast, Unravel, is available now. 'What Became of Jack' investigates how a fit young man disappeared from a picnic spot, leaving a trail of strange clues behind him. The belongings he left behind are discarded in a way that seems nonsensical, and to some, even sinister. Is he missing, has he left town or has there been a crime? Concern turns to suspicion and online speculation as weeks turn into months, with no sign of Jack. Now, ABC journalist Rob Burgin investigates what became of Jack, tracing the fragments of that night through a web of small Queensland towns, where everyone knows everyone, everyone knows something, but no one can agree on what became of Jack.

What Became of Jack is the latest season of the ABC's award-winning true crime podcast, Unravel. Follow Unravel to be the first to get new episodes.

The ABC's biggest investigative true crime podcast Unravel has just dropped their new season, Huntsman, and it's already rocketing up the podcast charts.

You might remember when former Jetstar pilot Greg Lynn was convicted of murder in the High Country. The story made headlines when Lynn admitted to burning the campers' bodies to cover his tracks.

But behind the scenes, people who knew him years ago began talking and sending messages.

It sparked an ABC investigation that uncovered the full story of his dark past and his abusive relationship with his first wife, Lisa Lynn, which ended in tragedy.

In this new season, investigative reporter Rachael Brown uncovers the details of Greg Lynn's former life and the fear and damage he left behind him in the suburbs.

You can find the podcast on ABC listen, or search for Unravel: Huntsman wherever you get your podcasts.

The long-awaited trial of Erin Patterson has begun. The ABC's Mushroom Case Daily podcast is your eyes and ears in the courtroom. Follow the podcast to make sure you don't miss a second of what's sure to be one of the most famous cases in Australian history.

We're dropping a new episode every day... with the details everyone's talking about.

Nearly two years ago Erin Patterson served up a lunch of beef wellington, laced with poisonous death cap mushrooms.

Now she's facing a triple-murder and attempted murder trial.

Follow Mushroom Case Daily in the Listen app.

Australia is a wild continent with some of the most intense weather on the planet. From massive bushfires to severe cyclones and devastating flooding; extreme weather is becoming part of our everyday lives. How do we take what we’ve learned from our past to better prepare and adapt for our future?

On a scratchy recording made in a Melbourne hotel room, a man admits to committing murder. But as journalist Alicia Bridges investigates the man on the tape known as Mr Big, she finds herself in a world of lies and subterfuge, where very few things are as they seem. The recording leads her deep inside an international controversy, to a world of secrets that powerful institutions don't want revealed.

Mr Big is the latest season of Unravel, the ABC's award-winning true crime podcast.

You can listen to the entire season now by searching for Unravel.

More information

Host and Reporter: Alicia Bridges

Supervising Producers: Yasmin Parry and Alex Mann

Producer and Researcher: Ayla Darling

Theme: Martin Peralta and Ashley Cadell

Sound Design: Hamish Camilleri

Executive Producer: Tim Roxburgh

Manager of Podcasts at ABC Audio Studios: Monique Bowley.

When the gunman responsible for the Port Arthur massacre staged a siege in the final hours of the incident, he was believed to have taken hostages. Craig Harwood led the Police Special Operations team tasked with containing the killer. As the hours wore on, Craig took on the role of sniper. He shares his perspective, from behind the sight.

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Rebekah Giles and her boyfriend were enjoying a last-minute Christmas holiday in Thailand when the deadliest tsunami in recorded history struck. Rebekah recounts her remarkable survival, from the moment a torrent of water blew apart her beachfront hut on Phi Phi Island.

If you need someone to talk to, call:

• Lifeline on 13 11 14
• 13Yarn on 13 92 76
• Beyond Blue on 1300 22 46 36
• Headspace on 1800 650 890
• QLife on 1800 184 527

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Former AFL star Gilbert McAdam recalls an incendiary game of footy that was a turning point in the code's history. After the final whistle Gilbert's St Kilda teammate, Nicky Winmar, took a defiant stance — raising his guernsey to proclaim pride in his Aboriginality. The moment was captured in two photographs. Widely published, the images brought the issue of racial abuse in the AFL to the fore. Gilbert reveals his personal story leading up to the incident, and what happened in its aftermath.

If you need someone to talk to, call:

• 13Yarn on 13 92 76
• Lifeline on 13 11 14
• Suicide Call Back Service on 1300 659 467
• MensLine Australia on 1300 789 978
• Beyond Blue on 1300 22 46 36
• Headspace on 1800 650 890
• QLife on 1800 184 527
• Kids Helpline on 1800 551 800

Stream the TV show on ABC iview.

The Beatles were the brightest part of John Law's young teenage life. At 14, he became a rebel in stovepipe pants — a true fan who did his bit to bring the band to his city. He recounts 1964's brilliant months of Beatlemania, culminating in seeing his idols perform live at Centennial Hall.

Stream the TV show on ABC iview.

When face-to-face with asylum seekers pleading for help, possible arrest was the least of Izzy Brown's concerns. Izzy was among a crowd of protesters at the outback detention centre the weekend the razor-wire fences came down and people were aided to flee. She shares what led her to the action, and what happened afterwards.

Stream the TV show on ABC iview.