The first season was shown in 2016 and the blurb says:
https://www.imdb.com/title/tt4976512/Beneath the placid facade of Canberra, amidst rising tension between China and America, senior political journalist Harriet Dunkley uncovers a secret city of interlocked conspiracies, putting innocent lives in danger including her own.
The new season starts on Foxtel next week. I gather that Netflix also shows it.
Has anybody seen it? Might be worth a look.