Janet is appointed as a Royal Commissioner to look at gun crime in Sydney as the state government is unhappy with the police response. The first episode in Season 2 sets up the first public hearings with a sub-plot about the death of her spouse and her battle with post traumatic stress disorder.

After the drive-by shooting at the Nobakht's, the Royal Commission focuses on the origin of George Healy's gun and the money Todd left behind - leading to a dead body and a link to Ash's murder.

After discovering the gun used in the drive-by was used in Ash's killing and the kneecapping of gambling addict Felix Murphy, the Commission launches an undercover operation to find out who shot Felix.

The suspicion on Karen is quickly transferred to Major Simon Hamilton and continues to mount due to his missing Ferrari, abusive reputation, no alibi for the night of Todd's murder and a shipping container full of handguns.

With increasing political pressure for the Royal Commission to deliver results, and the container full of handguns so far yielding nothing, Janet is forced to fast-track the undercover mission.

The undercover operation goes awry, with deadly consequences. Her cover blown, Bianca offers protection to Felix. Janet, Richard, and Lina prepare for their anticorruption hearing.

The commission finds a connection between Major Hamilton and Robbie Carter, the social-media face of crime victims. The attorney general gives Janet an ultimatum-either resign from the commission or risk her reputation in a public hearing.

Janet enlists the assistance of DPP Tony Gillies to persuade ICAC Commissioner Roger Embry to withdraw the corruption allegations against her. With the Royal Commission into Gun Violence back on track, the team is able to put faces to the big players in the gun importation racket, with some interesting results. Suspicion continues to grow that there is someone within the team who is involved in the conspiracy surrounding the guns and Ash's death. The full genetic screening results, combined with circumstantial evidence, provoke Andy and Bianca to precipitately arrest their suspect. Janet and Richard clash over his decision to represent his former colleague at her bail hearing. However, just when she thinks the danger to herself and the twins has passed, the results of the DNA phenotyping of Ash's murderer arrive in Janet's inbox. She immediately recognises the suspect and it's not the person who's safely in custody. A dramatic finale ensues, during which Janet confronts Ash's killer ... Written by Duchess of New Town