In retaliation for two Rats, Jack Christey sets the cat amongst the pigeons with even more devastating results.

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Trying to prevent a full-scale turf war comes at a heavy price for the Rats.

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The new boy at the Water Police, Gorgeous George Newhouse is making waves with the women, but Christey is not impressed.

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Alex and Mick investigate the case of a four year old boy found at the bottom of the harbor.

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Alex and Mick chase a triple killer through the streets of Sydney.

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Alex and Mick try to solve an old burglary and murder whilst battling a retired cop seeking redemption for years of humiliation.

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A young troubled boy places a wedge between Jack and his daughter, Sophie.

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After a shooting on a Harbour wharf, the Rats discover a love triangle of Russian immigrants and a Cold War in sunny Sydney.

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Things backfire for an old friend of Alex's, when he begs her to find his missing son-in-law.

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Alex and Mick race against time when someone is distributing guns that are rigged to explode when fired.

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On the eve of Gary Sykes' wedding, the rest of the Rats admit to their true feelings - one is dumped, one is given an ultimatum and one is kissed.

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Alex's life is a nightmare as she battles an obsessed admirer, her mother and the flu.

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Christey's daughter is given a brutal introduction to the realities of police work, while the death of a girl in a hit-and-run jet-ski accident causes disturbing memories to resurface for Alex.

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The Rats attend a wake. As the alcohol flows, so do the stories and, one by one, their true feelings are revealed.

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Donna is taken hostage by a convicted killer. Alone, she is forced to rely on her wits and her training to save her life.

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Hawker remains the professional police officer, even when he is targeted by a criminal. But when the vendetta involves his son, Hawker shows his true colours.

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Reilly is forced to cover up the murder of a criminal to save his family.

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Reilly crosses the line and unknowingly sparks a murder when he helps his sister's husband avoid jail.

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Knowing that a great job is coming her way, Blakemore resigns prematurely and takes the opportunity to tell everyone exactly what she thinks of them.

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Quinn is forced to re-evaluate the meaning of friendship when he alienates his workmates, as he defends a friend's lies and criminal behavior.

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Christey is reacquainted with his estranged father and discovers he is involved in a dangerous scam.

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A runaway yacht, a missing child and suspected multiple murders set Alex and Christey down the wrong path, where they uncover a plot to poison Sydney Harbour.

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Though the serial killer has been caught, Christey supports Blakemore's claims that there is another killer out there, a shadow man targeting the police.

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Jack Christey's new relationship is tested when one of the Rats is taken by a serial killer.

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Christey's investigation into a series of yacht explosions takes him north to a beachside community, where he meets a beautiful female cop with an agenda of her own.

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A water police operation on a container wharf results in a death, leaving each of the Rats to deal with their culpability and guilt.

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