Four Corners - Season 59 / Year 2026

Four Corners' two-part special on the Bondi massacre continues with Sean Rubinsztein-Dunlop's investigation into the secret lives of the terrorists, uncovering astonishing new information leading up to the attack.

The Liberal Party is hurtling towards a reckoning. This isn't just a battle that will decide who leads the Liberal Party; it's a battle for the party's identity, and direction. Patricia Karvelas takes you inside the contest that will shape the future of the Coalition.

Four Corners' "Scarred" reported by Louise Milligan and produced by Mary Fallon looks at practices by one of Melbourne's most prominent gynaecologists.

He was a top Melbourne surgeon who women trusted with their bodies and their futures.

But he removed organs and tissue from women in their twenties for what he told them was severe endometriosis, while failing to tell them that their pathology showed little or no signs of the disease. His procedures compromised their fertility and left some with chronic, debilitating pain.

This week, Four Corners uncovers how this was allowed to happen and why no one intervened until it was too late.

Reporter Louise Milligan and the team uncover how one of Melbourne's most prominent gynaecologists carried out repeated laparoscopic surgeries that senior specialists describe as unnecessary and harmful.

This seven-month investigation draws on patient testimony, forensic examination of medical records, and doctors speaking out for the first time. It exposes a pattern of surgery that experts have told Four Corners went far beyond accepted practice.

It also exposes how complaints, warnings and red flags were ignored.

This is a story about medical power, institutional failure and the devastating consequences when accountability breaks down.

It raises urgent questions about what must change to prevent it from happening again.

"Toxic Tide" reported by Angus Grigg for Monday's Four Corners is produced by Alex McDonald and looks into South Australia's algal bloom.

It's one of the worst environmental disasters to strike Australia's waters. Expected to be over in weeks, a year on, the South Australian algal bloom continues to devastate parts of the coastline.

As South Australians go to the polls this weekend, Four Corners investigates what the government knew about the health risks and what they told the public.

Despite the toxic bloom decimating marine life, shutting down parts of the fishing industry and according to some people, leaving them sick, the government repeatedly downplayed the health effects.

Angus Grigg and the Four Corners team piece together what the government was told and its public messaging.

Toxic Tide raises urgent questions about transparency, trust, and accountability in times of crisis. It serves as a warning for the rest of Australia about how governments respond and communicate as climate-driven environmental disasters become more frequent and more severe.

Wealthy tech titans Peter Thiel, Elon Musk and David Sacks were instrumental in Trump's rise to power and now hold sway far beyond Silicon Valley. How did they accumulate such unprecedented influence? Who's really in control?

Australian universities are in turmoil.  Deep cuts to jobs and courses are triggering fury on campuses across the country.

Monday's Four Corners report "Campus Chaos" reported by Steve Cannane and produced by Jonathan Mille, investigates how years of shrinking public funding, rising debt and increasingly corporate decision making have pushed some of the nation's most important public institutions to breaking point.

"Campus Chaos" reveals the scale of spending on outside consultants and asks what that means for transparency, accountability and the future of higher education.

It investigates claims that financial pressures are being used to justify sweeping restructures, while staff and students are left to bear the consequences.

This story asks whether universities have drifted from their core public purpose, and who they are really serving?

As the US bombards Iran, sparking region-wide conflicts and unleashing a global economic crisis, Four Corners interrogates one of President Donald Trump's key reasons for war: Did Iran pose a nuclear threat?

Whistleblowers from the social media giants reveal how their companies deliberately built a business model powered by outrage and division, paving the way for radicalisation, real-world violence and fractured societies.

Four Corners unveils Australia's first comprehensive national map of Adult Attention Deficit Hyperactivity Disorder (ADHD), revealing stark differences by location.

ADHD diagnoses in Australian adults have risen dramatically over the past eight years, especially in women.

Data for each state and territory reveal which suburbs are the hotspots. The findings are not what you'd expect.

Dr Norman Swan and the team drill down into the new figures and discover which is Australia's ADHD capital. Treatment rates there far exceed what experts say is the actual prevalence of the condition.

At the same time, large parts of Australia are ADHD deserts, where up to 90% of adults who might have ADHD are being left undiagnosed and untreated with potential consequences for their future.

Attention Deficit asks how Australia ended up with such extremes, what harm is being done from both missed and misdiagnosis, why the system is failing and whether proposed remedies are likely to work?

After four years of war, in Russia there is close to zero public opposition to Putin's invasion of Ukraine. But a few are prepared to speak out.

Four Corners sees Grace Tobin puts police taser use under scrutiny, and the role played by the device's manufacturer, Axon.

Police across Australia have embraced tasers over the past two decades.

The weapons are meant to be a safer way to stop dangerous situations, without taking a life. But people are still dying.

This week Four Corners reveals the secretive tactics behind investigations into controversial deaths, and the role played by the device's manufacturer, Axon.

Reported by Grace Tobin from the ABC's investigative reporting team, Taser Tactics features an in-depth interview with the family of 95-year-old Clare Nowland, who died after being tasered in a nursing home in 2023, as well as shocking footage of a farmer being tasered within seconds of a police encounter on private property.

For the first time, the program examines how a multibillion-dollar US tech giant has made itself indispensable to police in every state and territory.

At its core, Taser Tactics asks a simple question: When something goes wrong after a taser is used, who decides what actually happened?

The Salvadoran president's deal with Trump to imprison deportees, and what each stood to gain. With the Salvadoran news outlet El Faro, now reporting from exile, President Nayib Bukele's tangled history with the gangs the U.S. says it is fighting.

A look at Donald Trump's immigration crackdown, from high-profile ICE raids to the death of activist Renee Nicole Good in Minneapolis, exploring questions around civil liberties, accountability and who is being targeted.

Worth almost $300 billion, BHP is the world's largest mining company. Despite publicly touting its green credentials over the last decade, Four Corners investigates how the company quietly halted green projects in the Pilbara and put off action on climate change. Angus Grigg teams up with journalist Marian Wilkinson to investigate how BHP went cold on climate change and what this means for Australia's climate targets.

A confronting Four Corners investigation into alleged police misconduct in NSW and the hidden accountability system accused of failing victims and the public. We ask, when police abuse their power, who holds them to account?

Artificial intelligence is already changing how we live and work, while being sold as the technology that could cure disease, transform productivity and solve some of the world's biggest problems.

Four Corners reporter Steve Cannane investigates the race to build ever more powerful AI systems and asks whether it is moving faster than governments and communities can keep up with.

Filmed in the United States and Australia, the program goes inside the global battle between the world's most powerful technology companies as they spend huge amounts of money building systems some say could one day outperform humans.

Four Corners meets Bay Area tech workers who say AI has already upended their careers, experts who warn of systems that are becoming harder to control, and campaigners fighting the growing power of big tech companies.

The story also takes a look at the next generation of AI models; software that can take instructions, make plans and act with increasing autonomy. Some in Australia are now asking what happens if these systems are deployed without adequate safeguards.

Four Corners also digs into the physical footprint needed for the AI boom. Across America, communities are pushing back against the rapid construction of data centres, raising concerns about noise, pollution, water and energy use.

Now, Australia is being courted as a key destination for major AI and data centre investment. The program examines deals, lobbying and policy shifts as global tech giants promise innovation, scientific progress and productivity gains. Critics warn Australia has retreated from tougher AI safety regulation at the very moment the technology is accelerating.

As the world's most powerful AI companies seek to invest billions in Australia, Four Corners asks: who controls our future?

Four Corners: The AI Race is reported by Steve Cannane and produced by Lesley Robinson.