The shooting of a woman leads to some shady operations and while protecting a witness Alex and Gavin's life are suddenly in danger. Meanwhile Gavin's wife goes into labor.

A team from Homicide, lead by Det. Sgt. Joe Da Silva, arrives to begin the investigation into Rachel's death. The Water Police meanwhile continue their investigation into the illegal immigration and passport scam

Knocker is finally caught in his own deadly web. Frank informs Goldie of Knocker's involvement in Kevin's death but she refuses to believe him until Brady shows her the evidence.

While Gavin fight for his life in hospital, Jack is using all means necessary to find the shooter and unravel the truth.

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.

Holloway and Goldie race against the odds to find the real killer of Sam Jones.

Despite being assigned to investigate an armed holdup on board a luxury cruiser, Jack continues his search for Rachel's killer, butting heads with Hawker and Det. Sgt. Da Silva who want him to back off.

A copycat is on the lose robbing safety boxes of boats.

When Goldie and Tavita arrest Dave McCall's son and charge him with the supplying and trafficking of illegal drugs, the pressure of balancing work and home life gets to Dave.

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