Holloway is suspended from police duties when he gets charged with the murder of Sam Jones. Rachel gets help from her new partner, Sykes, when she sets out to clear his name. Rachel believes Frank is being set up by Melbourne crime figure Charlie Hayes to discredit him as a witness in Gary Travis' upcoming trial (from ep. 45 and 46). The boat crew deal with a pair of jet skiers whose antics are threatening endangered penguin species.
Tony Brady from Internal Affairs investigates Frank after a petty criminal accuses Frank of assaulting him while in custody. A series of safe robberies in which evidence at the crime scenes points to inside jobs gets investigated by Frank and Rachel. Tayler and Tavita looks after two precocious children when their parents are arrested.
The investigation into the death of Melissa Davies continues, but the stakes are raised with the knowledge that her son, Jordan, is still alive.The question is why would these men want the child? Fearing that Jordan may have witnessed her mothers murder, the detectives are desperate to find him before he is killed. An eager young journalist following the Nemesis crew is more interested in Tayler than his story, but Sykes s overly co-operative in what he tells the reporter about his colleagues.
The body of a Melbourne woman is found mutilated at Sydney Harbor, taking detectives Frank Holloway and Rachel Goldstein to Melbourne to investigate. The womans sister and a shady King Street nightclub owner seems to know more than they are letting on. A man pulled from the sea by the Nemesis crew claims his boat was struck by a cargo ship, sending him and his still missing wife overboard.
When a US Navy fleet cruises into Sydney Harbor over the Mardi Gras weekend the resources of the Water Police are stretched. Rachel and Holloway joins the boat crew in trying to keep order on the harbor as a flotilla of fanatical environmental protesters hinder the Navy's arrival. The weekend takes a violent turn when a teenager is found bashed in the Water Police car park. Livvy, the bar attendant, reveals she overheard five American sailors talking about harassing gays and a posse of off-duty Rats is organized to track them down. Rachel is offered a job in the security business.
Rachel and her new man, Michael Jeffries are guests at a wedding on ""the Bounty"". the romantic setting is shattered when a body falls from the sails. Rachel puts her relationship with Michael on the line when she puts aside her persona and turn professional in her detective role. Frank and Rachel tries to solve the mystery of the dead body. An extortionist claims the killing is part of a planned terrorist attack on the Australian tourism industry. Gavin tracks down the man who stole his car.
After the Nemesis crew hear a gunshot on a yacht in the middle of the night, they find a badly injured woman who makes a garbled statement about ""the man in the moon"" before dying. Holloway and Rachel investigates the killer, a supposedly happily-married real estate agent who leads a double life. Tavitas relationship with an elderly couple ends in tragedy.
A psychic tells Hawker she had a ""vision"" about a missing girl, and detectives are reluctantly brought on the case. Rachel establishes a rapport with the psychic but Holloway is skeptical, is she genuine or is she just after the $10 000 reward money being offered by the girls parents? Rachel meets a new man-and creates a new career for herself.
Terry jeopardizes his career when he falls into bed with Gina Downie, a woman he rescues when her dive into a shipwreck goes wrong. Terry believes their rendezvous to be just another one-night stand, but she has more sinister intentions which culminate in a near fatal attack on Terry. Frank and Rachel try to solve the puzzle of a woman found floating in the harbor. Was she murdered or did she commit suicide?
A ferry with Tommy on board collides with a large fishing trawler. Tommy tries to control the panic, risking his own life to help passengers escape before the ferry sinks. After the ferry disaster, Tayler unknowingly hands robbery proceeds back to a thief, Sykes looks into the life of his double who was killed in the ferry crash, and Goldie and Holloway try to ascertain who was at fault in the accident.
Frank's involvement with Jennifer Campbell who is suspected of her husband's murder deepens, despite warnings from Goldie. Tension between Goldie and Frank is at boiling point. The Water Police gets a new crew member: Tayler Johnson! She's a bit frustrated after her first day, as nobody seems to take any notice of her. And Sergeant Helen Blakemore is not very nice to her.
Back on deck after having shot her fiancé corrupt copper, John ""Knocker"" Harrison dead, is Detective Rachel ""Goldie"" Goldstein, reacting snappily to being dubbed ""Gunner Goldstein"" by a colleague with an unhealthy interest in what it's like to kill someone. Dave McCall is at the receiving end of a spear from a sunken and booby-trapped car, loaded with stolen gold ingots. Goldie and Frank Holloway investigate a bouillion robbery. The ""Nemesis"" crew are looking after a prisoner, a former Olympic rowing champion.