At police headquarters in steamy, tropical Darwin, a cop is brutally slain - right under the noses of his colleagues. The equally savage murder of select members of Darwin's legal fraternity follows, leaving investigating officers completely baffled. Is there a serial killer at large, and what connects the victims? These are the questions lead homicide investigator Russell Foley struggles with, while facing his own personal demons brought about by a failed marriage and the disintegration of his relationship with his best friend.

Would you turn criminal to save a child? Desperate to save his dying nephew, Mitch Walker agrees to commit a dangerous crime, in exchange for life-saving medicine. But things go horribly wrong and he sets off a chain reaction of kidnapping, carnage, and chaos. Hunted by ruthless criminals, Mitch's only hope is a cop named Betts, who wants him behind bars. But the game is about to change.

Arriving in Mole Creek in the aftermath of Pete's death, Xander discovers that his grandfather's laptop is missing. He begins to suspect that something is wrong, refusing to accept the facts as presented. With the local police not interested in investigating an apparently open-and-shut suicide, Xander sets about uncovering the truth of what happened to his grandfather.

Special Agent Constant Marlowe is tasked with taking over the investigation of an obsessed serial killer trolling the small town of Clark Valley in the quiet—and eerie—plains of the Midwest. Two female victims in quick succession, the same brutal MO, and every indication that victim number three is only days away. Also in the killer’s scope is Constant herself. When she interviews a local family who may be potential witnesses, she leads the devil to their doorstep, throwing their lives into chaos.

Lawyer Tom McLaren makes a trip to the outback, where he hopes to talk an Aboriginal community into giving up their land to his client, a mining magnate. Negotiations prove difficult and lengthy, and Tom and his colleagues take a weekend trip deep into the outback, where they hope to get some fresh ideas. To their horror, they become caught in a dangerous altercation with a deranged gunman, and their trip soon becomes a nightmare.