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Under Investigation

 (2021)

Streaming Episode Guide

Season 6 | Season 5 | Season 4 | Season 3 | Season 2 | Season 1 | Top 5 Episodes
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Season 6  
Shots Fired
Episode 8 - 3-27-2024
The shooting of Kumanjayi Walker by former NT police officer Zachary Rolfe in 2019 sparked one of the most contentious and racially-charged criminal sagas in Australian history.
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Haven't Seen
Shots Fired
The Good Snitch
Episode 7 - 3-20-2024
Supposedly safe in witness protection, Andrew Petrelis, the star witness in a $40 million dollar drug importation is found dead. His death is deemed a tragic drug overdose.
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Haven't Seen
The Good Snitch
Spy Nation
Episode 6 - 3-13-2024
China's authoritarian government is quietly developing AI designed to control its citizens. Liz Hayes and her team investigate just how far China's silent invasion will go.
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Haven't Seen
Spy Nation
I am the Law
Episode 5 - 3-06-2024
Former WA cop Adrian Moore exploited his authority and the trust vested in police to manipulate, rape, and abuse thirteen women over a decade before being convicted in 2022.
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Haven't Seen
I am the Law
The Runner
Episode 4 - 2-28-2024
It is every family’s nightmare. A mother goes out on her regular morning jog, and never returns. In a special edition of Under Investigation on Wednesday night, Liz Hayes and a team of experts travel to the Victorian regional city of Ballarat to delve into the mysterious disappearance of 51-year-old Samantha Murphy.
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Haven't Seen
The Runner
The Vanishing of Sandrine Jourdan
Episode 3 - 2-21-2024
Sandrine Jourdan was a vivacious mother of three living in the small town of Caboolture until she mysteriously vanished in 2012. Liz Hayes and her team of experts raise serious doubts about the official narrative.
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Haven't Seen
The Vanishing of Sandrine Jourdan
The Trials of Graham Stafford
Episode 2 - 2-14-2024
When a 12-year-old Queensland girl was brutally killed, her sister's boyfriend Graham Stafford was almost immediately convicted with her murder. Liz Hayes and her team of experts examine the flawed investigation and a shocking miscarriage of justice.
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Haven't Seen
The Trials of Graham Stafford
The Snake and the Shotgun
Episode 1 - 2-07-2024
While searching for a snake in her garage, a devoted mother is fatally shot in the back by her husband. Liz and her team of experts examine the events surrounding that night.
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Haven't Seen
The Snake and the Shotgun
Season 5  
Secrets of Balibo
Episode 10 - 10-17-2023
Liz Hayes and her team of investigators assemble formerly top-secret diplomatic documents to expose what really happened to the Balibo Five, a team of Australian journalists executed in East Timor. Their deaths mark the beginning of a shameful government cover-up that continues tonight.
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Haven't Seen
Secrets of Balibo
The Last Lunch
Episode 9 - 8-25-2023
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Haven't Seen
The Last Lunch
The Confession
Episode 8 - 3-29-2023
Richard Dorrough, ex-navy sailor, took his own life in 2014. He left behind a shocking note claiming to have murdered three people, but no details to identify the victims.
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Haven't Seen
The Confession
The Hit
Episode 7 - 3-22-2023
One of Australia's most senior officers was killed in his own driveway they suspected a professional hit. Investigators jailed and then freed another. Who killed Colin Winchester?
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Haven't Seen
The Hit
Ambush
Episode 6 - 3-15-2023
Four young police officers sent to a rural property are ambushed by violent extremists. They faced the siege at Wieambilla - the point when conspiracy became violence.
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Haven't Seen
Ambush
An Excellent Murder
Episode 5 - 3-08-2023
He was brave enough to stand up to the mafia in a country town. But Don Mackay paid the ultimate price. His enemies weren't just mafia living by the creed: You speak, you die. He was also facing a political insider.
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Haven't Seen
An Excellent Murder
Ghost Ship
Episode 4 - 3-01-2023
Australia's most baffling maritime mystery, the 1988 disappearance of the Patanela just 10 miles off the coast of Sydney. No distress call. No debris. All four on board lost without a trace. What really happened to the Patanela?
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Haven't Seen
Ghost Ship
The Disgraceful Doctor Manock
Episode 3 - 2-22-2023
One of the world's most unforgivable legal scandals. How South Australia's Chief Forensic Officer operated for decades with barely a qualification, providing false evidence.
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Haven't Seen
The Disgraceful Doctor Manock
Where's Willi?
Episode 2 - 2-15-2023
Australia's first celebrity chef, star of radio and television Willi Koeppen, runs one of the country's most successful restaurants before he vanishes without a trace in 1976.
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Haven't Seen
Wheres Willi
The Man In The Hole
Episode 1 - 2-08-2023
Loving couple Ray and Jennie Kehlet join colleague Graham “Grumpy” Milne on a gold-prospecting trip to the red heart of Western Australia. Three people go out but only one comes back. Then a body is found in a remote mineshaft. With a senior member of the police investigative team joining our panel of UI experts, the case is laid open as never before.
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Haven't Seen
The Man In The Hole
Season 4  
Slug Gate
Episode 8 - 11-14-2022
After government inspectors found a slug in a Melbourne catering company's factory, a public health warning erupted into a bitter brawl between a David and a Goliath.
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Haven't Seen
Slug Gate
Bad Faith
Episode 7 - 11-07-2022
Uncover the terrifying abuse faced by young, vulnerable women at the hands of the Esther Foundation, a Perth cult once backed by some of the most powerful leaders in the country.
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Haven't Seen
Bad Faith
Girls Gone
Episode 6 - 10-31-2022
Nearly 50 years ago, 11-year-old Joanne Ratcliffe and 4-year-old Kirste Gordon were snatched from the Adelaide Oval. Groundbreaking new technology helps identify their kidnapper and reveal a shocking twist.
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Haven't Seen
Girls Gone
Dark Seas
Episode 5 - 10-24-2022
Travellers onboard cruise ships have seen violent crime, pollution, and now a COVID crisis. Liz Hayes and a panel of experts examine whether it has learnt from past lessons.
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Haven't Seen
Dark Seas
The Highway
Episode 4 - 10-17-2022
Between 1970 and 2018, 11 people have vanished or been murdered along the Flinders Highway, including missing backpacker Tony Jones. Under Investigation pieces together his final hours.
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Haven't Seen
The Highway
Gangs of Sydney
Episode 3 - 10-10-2022
After over a dozen killings in 18 months, Sydney's gangland wars are getting bloodier. Under Investigation pulls back the curtain on the city's dark underbelly.
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Haven't Seen
Gangs of Sydney
The Hate Police
Episode 2 - 10-03-2022
In the 1980's and 90's, Sydney's gay community fell victim to ruthless bashings by savage gangs. Now, Under Investigation can reveal the role played by the NSW Police Force.
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Haven't Seen
The Hate Police
The Cop Who Knew Too Much
Episode 1 - 9-26-2022
Liz Hayes and Under Investigation's formidable experts investigate the strange death of a top SA cop in 1981. Written off as suicide for decades, compelling new revelations point to a sinister plot to kill the decorated detective.
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Haven't Seen
The Cop Who Knew Too Much
Season 3  
Episode 8
3-30-2022
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Haven't Seen
Episode 8
Episode 7
3-23-2022
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Haven't Seen
Episode 7
Putin the Tyrant
Episode 6 - 3-16-2022
Not since Adolf Hitler has the world feared a dictator like Vladimir Putin. Hitler's madness sparked a World War - could Putin do the same?
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Haven't Seen
Putin the Tyrant
Nuclear Reaction
Episode 5 - 3-09-2022
UI investigates Australia's delicate dance with nuclear energy, which many experts say is our only way of surviving past fossil-fuels into a carbon-free future.
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Haven't Seen
Nuclear Reaction
Mapping Mr Cruel
Episode 4 - 3-02-2022
UI re-investigates the baffling case of Melbourne's "Mr Cruel" that involved a series of child abductions and murder during the late-1980's.
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Haven't Seen
Mapping Mr Cruel
Curse of the High Country
Episode 3 - 2-23-2022
Following the ground-breaking investigation that examined the disappearance of elderly lovers Russell Hill and Carol Clay, from their remote campsite in Victoria's High Country.
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Haven't Seen
Curse of the High Country
The Unidentified
Episode 2 - 2-16-2022
UFOs - A topic previously pushed into science fiction is suddenly being taken very seriously based on an extraordinary video, taken, and authenticated by the US Military.
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Haven't Seen
The Unidentified
Operation London Bridge
Episode 1 - 2-09-2022
"The Queen is dead, long live the King" will be the words echoed the instant Her Majesty Queen Elizabeth II passes. UI investigates The Crown in a post-Elizabeth world.
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Haven't Seen
Operation London Bridge
Season 2  
Girl in the Chute
Episode 6 - 9-20-2021
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Haven't Seen
Girl in the Chute
War with China
Episode 5 - 9-14-2021
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Haven't Seen
War with China
Murder Island
Episode 4 - 9-13-2021
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Haven't Seen
Murder Island
Episode 3
9-06-2021
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Haven't Seen
Episode 3
Episode 2
8-31-2021
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Haven't Seen
Episode 2
Episode 1
8-24-2021
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Haven't Seen
Episode 1
Season1
Season 1  
The Disaster Aircraft
Episode 6 - 4-05-2021
47m
Nearly 400 people lost their lives to a design flaw in Boeing's 737 Max that caused two crashes, but the aircraft is back in the skies and Australians could soon be stepping aboard.
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Haven't Seen
The Disaster Aircraft
Putin's Poison
Episode 5 - 3-29-2021
50m
Russian President Vladimir Putin has unleashed chemical warfare on his opponents, poisoning them with deadly toxins. Our panel reveals evidence that marks him as a terrorist who puts whole communities at risk in his quest for power.
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Haven't Seen
Putins Poison
Jaidyn Leskie – Little Boy Lost
Episode 4 - 3-22-2021
58m
Toddler Jaidyn Leskie was murdered in 1997 in a case that transfixed Australia. Greg Domaszewicz, who was acquitted of the killing, speaks out for the first time in more than 20 years – and our expert panel re-examines the evidence.
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Haven't Seen
Jaidyn Leskie  Little Boy Lost
China & The Virus
Episode 3 - 3-15-2021
42m
The world was told the Coronavirus leaped from animals to humans at a market in China – but many scientists now fear it leaked from a lab. Experts reveal the new research techniques that put us all at risk.
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Haven't Seen
China  The Virus
The Disappearance of Janine Vaughan
Episode 2 - 3-08-2021
51m
Janine Vaughan was 31 when she was murdered after accepting a lift on a night out in 2001. Our panel uncovers shocking police tapes and unseen CCTV of Janine's last known moments.
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Haven't Seen
The Disappearance of Janine Vaughan
High Country Mystery
Episode 1 - 3-01-2021
50m
Two ageing lovers escaped to Victoria's remote High Country to conduct their secret affair – and have never been seen again.
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Haven't Seen
High Country Mystery
Top 5 Episodes
Top 5 Highest Rated Episodes
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