Where To Stream Four Corners Season 2023 Episode 21

What did it take to lure the two of us back to our old stomping ground? A cracking expose on Australia's greatest untold spy story. It was only six years ago in 2017 that ASIO's Official History confirmed our spy agency had been penetrated by the KGB during the Cold War. But just what happened and who betrayed Australia has been a closely guarded secret. Until now. In this week's Four Corners, we reveal not just the full extent of this breathtaking treachery but also the identity of the ASIO...