This week's Australian Story provides a rare insight into the mysterious world of Australia's elite Commando regiments.

Corporal Cameron Baird was killed last year in Southern Afghanistan. At the time the Australian Defence Force said the 32-year-old soldier had 'died how he lived – at the front, giving his all, without any indecision.'

Earlier this year he was awarded a posthumous Victoria Cross which made him Australia's most decorated soldier, in company with Corporal Benjamin Roberts-Smith.

Corporal Baird was the very last Australian soldier to be killed in action in Afghanistan - just months before the troop withdrawal.

Now, for the first time, those closest to him are telling his story...