1. High Country Mystery

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. 1 March 2021. 50 min

Two ageing lovers escaped to Victoria's remote High Country to conduct their secret affair – and have never been seen again.

2. The Disappearance of Janine Vaughan

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. 8 March 2021. 50 min

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.

3. China & The Virus

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. 15 March 2021. 50 min

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.

4. Jaidyn Leskie – Little Boy Lost

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. 22 March 2021. 50 min

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.

5. Putin's Poison

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. 29 March 2021. 50 min

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.

6. The Disaster Aircraft

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. 5 April 2021. 50 min

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.