Lewis Moran hires Benji Veniaman to execute his son's, Mark Moran's killer. Subsequently, Veniamen is insulted by the Carton Crew and forms a dangerous alliance with their unpredictable rival Carl Williams; Steve and Jacqui's police instincts are tested when they try to disprove a murderer's alibi; when a criminal is shot dead multiple times, the Police realise there's a monster on the loose.

Amid growing public unrest, the police establish Task Force Purana to combat the gangland war. Loan shark Mario Condello faces his own financial crisis, which he solves with brutal efficiency. Bitter rivals Carl Williams and Jason Moran take out contracts on each other’s life. Taskforce Purana detectives are furious when police corruption derails their investigations.