Water Rats

While the boat crews are kept busy responding to a series of suicide hoaxes, Frank and Rachel play host to a detective from Scotland Yard who has been sent to Australia to take possession of $5 million in recovered diamonds.

The boat crew's discovery of a man who has had his hand nailed to a tree by his neighbour leads the detectives into the investigation of his wife's disappearance and as they later learn, murder.

When a homeless boy becomes trapped in a pylon in the harbour, the Water Police are shocked to discover a dead body floating in the water beside him. While Blakemore takes it upon herself to ensure the homeless boy is taken care of, she begins to develop a relationship with the boy's lawyer, Gillian Swain, who is quick to file a lawsuit on the boy's behalf.

When a severed penis is found washed up on a beach, a search is launched to find the victim and the detectives soon find themselves dealing with reports of a stalker and a subsequent kidnapping.

Crime, punishment, betrayal, retribution, suicide, and family tragedy all play their parts when detectives Goldstein and Holloway find themselves investigating a prominent crime family carrying out million dollar heists on Sydney Harbour

A crooked grandmother, a fraudulent stockbroker and a water taxi driver who gets taken for a ride all baffle the detectives. Meanwhile, Blakemore's romance with Gillian Swain comes to an abrupt end.

Frank and Rachel are assigned to work with Detective Michael Reilly of VIP Security while a prominent Islamic preacher is in Sydney. After foiling one assassination attempt, the detectives find themselves dealing with the Sons of Freedom militia group whose leader they previously put away

The untimely death of an old friend and the desire to realise a forgotten dream prompt Frank to say farewell to the Rats. Reilly doggedly follows up on a junkie's failed suicide attempt while Helen's colleagues throw her a surprise party for her 40th birthday.

Detective Jack Christey arrives to take on the new senior detective's job in the Water Police but his working relationship with Rachel gets off to a bad start when he takes charge of a murder investigation involving an old friend.

Tayler becomes romantically involved with another police officer while on a diving course. However, while out together on a recreational dive, her lover goes missing and Tayler discovers just how little she knew about this man

A swingers' party at a harbourside home is interrupted by two masked robbers. When the host is later found murdered, detectives Reilly and Goldstein must go undercover at a well-known swingers' haunt in an attempt to coax a confession out of their suspects.

Reilly's friendship with Sydney madam Susie Abromovich results in them both being taken hostage by a pair of armed robbers.

A prank call takes the Nemesis out to a harbour-side hotel where Gavin is abducted by a maniacal young man who has a desire to play cop for a day so that he can settle a grievance against those responsible for his brother's imprisonment.

When the body of a young man is pulled from the harbour, the detectives' investigation into his possible suicide reveals a dark secret about an even greater tragedy.

Christey and Goldie race to save two young girls whose lives are at stake after they inadvertently become caught up in a drug smuggling ring after stowing away on a cargo ship

The detectives find themselves hunting a vicious serial rapist and killer who targets women whose handbags he steals and then returns. The investigation hits close to home for Hawker when his wife is attacked

A young boy is abducted while on a school excursion and Rachel is soon faced with every mother's worst nightmare when it is realised her son David has gone missing as well. When the kidnapper surfaces, Rachel is drawn into committing an act that could cost her son his life.

When a burning body is found floating on a sail board in the harbour, Christey recognises it as the work of a killer who is already in jail and must contend with the possibility that he may have convicted the wrong man.

Detectives Goldstein and Christey find themselves investigating a series of armed holdups in which the perpetrator is dressed up like a wild west cowboy, a style that matches another group of robberies committed twenty years prior

The detectives investigate the theft of valuable artwork from the harbour-side home of once-famous madam Sadie "The Scissors" Seymou. Meanwhile, Sykes and Tavita take the witness stand at a coroner's inquest to tell their versions of events from the day they struck and killed a man with the Nemesis during a pursuit

After police divers recover the body of a known felon from a shipwreck where he had been diving with a friend, the detectives soon find themselves investigating his murder and searching for the whereabouts of his missing haul of black opals.

The body of an eight-year-old boy is recovered from a creek by the divers and the detectives are soon confronted by a group of angry citizens lead by a local councillor seeking swift justice for the man believed to be responsible for the boy's murder

The recovery of a mutilated torso from a mangrove swamp leads detectives Goldstein and Christey on a search for a murderer but their investigation takes an unsuspected twist when they are kidnapped and driven out into the bush where they are then hunted by the killer.

When the Water Police investigate the murder of a wealthy businessman and the apparent kidnapping of his wife, Hawker is re-acquainted with a woman he once loved. Gail informs Jeff she has started divorce proceedings.