Back for a second season, Secret City returns 2 years later after Harriet Dunkley spends time in a Federal Prison. There is of course another political web of deceit and a whole conspiracy for Harriet Dunkley to uncover. As the plot thickens and the pieces begin to fall into alignment, the season builds up to a climactic, but somewhat thought-provoking, highlighting dangers around technology and our own perceptions of war.