The Water Police are plagued by a series of hoaxes and it is up to Frank and Goldie to determine who and what they can trust.

When a man is nailed to a tree by his neighbour, Holloway and Goldie discover his wife has vanished.

When a homeless kid is trapped in a pylon in the harbour, the Water Police are horrified to discover a dead body floating in the water beside him. While Blakemore makes it her responsibility to ensure the homeless boy is taken care of, she begins to develop a relationship with the boy's lawyer, Gillian Swain. Meanwhile the Detectives unravel the mystery of the body found the pylon.

When a gender-specific piece of anatomy is washed up on the beach, Holloway and Goldie investigate.

Helen's romance hots up. Meanwhile, crime, punishment, betrayal, retribution, suicide and family tragedy when Goldie and Holloway infiltrate a crime family operating an insurance scam on Sydney Harbour. When it all goes terribly wrong, the family is eventually torn apart - not so much by the police intervening, but by in-fighting, backstabbing and betrayal.

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 comes to an abrupt end.

Holloway and Goldie's partnership is shaken when a third detective, Michael Reilly, is assigned to the Water Police.

The death of a friend and a forgotten dream prompt Frank Holloway to farewell the Rats.

The working relationship between Jack Christey and Goldie gets off to a rocky start. Already compromised by their past affair, further strain is added when Jack insists on taking the lead in a murder case involving an old acquaintance.

Police constable Tayler Johnson becomes romantically involved with a cop on a diving course, but while out on a dive, he goes missing and Tayler realises how little she knows about him.

Michael Reilly and Goldie have to go undercover at a well-known swingers' haunt to coax a confession out of some murderers.

Detective Michael Reilly's friendship with madam Susie Abromovich results in them both being taken hostage by an armed robber.

Gavin Sykes is taken hostage by a young man with a desire to be a cop for a day.

The investigation into the suicide of a young man reveals a greater tragedy, a secret that will ultimately destroy the lives of all those involved.

Jack Christey and Rachel Goldstein race to save two young girls whose lives are at stake when they inadvertently become caught up in a drug smuggling ring.

A grisly case hits home when Jeff Hawker's wife, Gail, becomes the target of a vicious serial rapist and killer.

Goldie faces every mother's worst nightmare when her son David becomes the victim of a brutal and vicious kidnapper.

A burning body is found floating on a sail board in the harbour; Jack Christey recognises the work of a killer who is still in jail; did Christey convict the wrong man?

A spate of armed hold-ups have Goldie and Jack chasing a robber dressed like a cowboy from the wild west.

While investigating the murder of a thief an his missing haul of black opals, Goldie and Christey stumble upon an unexpected love triangle.

When a young boy's dead body is found, Goldie and Jack have to prove who is responsible before an enraged local community exacts their own just on the main suspect.

Goldie and Jack are kidnapped and hunted like animals by a murderer who sees his victims as prey.

Investigating the murder of a wealthy businessman and the apparent kidnap of his second wife, Jeff Hawker is reacquainted with a woman he once loved but lost to another man.

When a man is taken by a shark in the harbour, the water police uncover a complex web of embezzlement, a faked death, underworld connections and a bizarre betrayal.

What starts as another ordinary day at the office ends in the death of a Goldie a much loved rat.

The surviving Rats swear revenge for their fallen comrade!

Jack believes he has discovered the identity of Goldie's killer, but his only clue may just slip through his fingers.

Jack hands in his badge and turns vigilante in order to find Goldie's killer.

Friendships are tested when Mick Reilly's best mate becomes embroiled in a murder investigation.

Jack is forced into a deal with undercover cops when Detective Alex St Clare joins the rats and there is a conflict of interest in a murder investigation.

Jack fights to save the life of an undercover cop, Alex St Clare whom he suspects is emotionally involved with her target.