Explores the official history of the Australian SAS, a special forces unit of the Australian Army, from it's inception to current involvement in fighting Islamic State.

Exclusive: When David and Mary McCarthy opened a letter from the Australian Defence Force in 2016 — eight years after their son Sean was killed in Afghanistan — they thought it might be a mistake.

For the first time in 25 years the Australian SAS lift their strict veil of secrecy to reveal what it takes to pass the most physically challenging and psychologically demanding military selection ...