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

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

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

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

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.

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.

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

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

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.

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.

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

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

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

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

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.

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.

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

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

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

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

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.

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.

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.

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.

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

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

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.

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.

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.

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.

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

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

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.

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.

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

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