The cost of living with Coles and Woolworths. We uncover the tactics used by supermarkets to keep prices high - and competition out. Both deny price gouging but there are now six inquiries and reviews targeting the duopoly.

A man accused by Rwandan authorities of being involved in brutal atrocities is living in Australia's suburbs. This joint Four Corners and Guardian investigation raise tough questions about our immigration screening processes.

Why the rest of Australia should care about what's happening at elite schools. Amid the push for private boys' schools in Australia to go co-educational, we investigate if these institutions are safe places for girls.

Inside Israel's war machine. John Lyons asks the tough questions; challenging some of Israel's most powerful political and military voices about the country's strategy and intentions. Is there any way out of this war?

Two years since Ukraine was invaded by Russia, Four Corners brings you a rare insight from the other side. Filmmaker Sean Langan's groundbreaking documentary offers a human perspective on life on the Russian frontline.

Behind the scenes of David McBride's fight to clear his name. The former Australian military lawyer is credited with exposing war crimes in Afghanistan - but was that his intention when he released government secrets?

The weight-loss wonder drugs in high demand and short supply. Elise Worthington meets desperate patients trying to access medications like Ozempic and exposes an Australian scam illegally exporting the suspect drugs overseas.

More than three million Australians are living with chronic pain, and it's become a breeding ground for exploitation. We expose the ugly side of medicine with patients in worse pain after having surgery and lives put at risk.

The inside story of one of America's biggest national security leaks. We expose the inner circle and the young US Air National Guardsman at the centre of it, who leaked classified defence documents on an online chat platform.

Australia's addiction to crystal meth or 'ice' is having devastating consequences, but beyond the street dealer, most are unaware of the drug's murky supply chains - and the faceless figures profiting at the top.

A growing number of children are struggling to attend school - they want to go to school but feel like they can't because of anxiety and stress. We meet families battling the blame, shame and fear of missing out on education.

A major international investigation into how porn websites operate and exposes their business models. Former employees give inside accounts, and victims whose lives have been destroyed by the videos speak out.