La police de l'eau de Sydney enquête sur un attentat à la bombe contre un ferry, tout en essayant de localiser d'autres engins explosifs qui pourraient encore se trouver dans le port.

Un homme qui prétend avoir la bombe manquante prend des otages sur un ferry.

L'équipage de Nemesis découvre un yacht abandonné à la dérive dans les eaux au large de Sydney.

Homicide est appelé pour aider les détectives dans leur enquête sur la mort d'un concurrent d'Iron Man dont le corps ravagé par un requin a été retrouvé échoué sur une plage.

Frank et Rachel enquêtent sur le meurtre d'un docker et le vol d'une cargaison de scotch.

Lorsque la petite amie de Billy Pope est retrouvée assassinée à la veille de témoigner lors d'une enquête sur des affaires de corruption policière, Affaires intérieures arrive après que Frank a estimé qu'il avait informé le meurtrier de l'endroit où elle se trouvait.

Lorsqu'une famille vietnamienne est victime d'une invasion de domicile dans laquelle son fils est kidnappé, les détectives sont appelés à localiser les ravisseurs avant l'expiration du délai fixé pour leur rançon.

Le frère de Frank Holloway, Kevin, est répertorié comme une personne disparue lorsque sa voiture est retrouvée abandonnée.

Un raid de drogue apparemment banal sur une voiture de croisière découvre un bracelet qui permet aux détectives Goldstein et Holloway de mener une enquête sur la disparition d'une jeune écolière turque.

Rachel est traquée par une jeune femme dont le petit ami, Rachel, a été abattu au cours d'une tentative de vol.

Le frère de Frank Holloway, Kevin, est répertorié comme une personne disparue lorsque sa voiture est retrouvée abandonnée.

L'inspecteur Tony Brady, de John Harrison, responsable des affaires internes et de l'homicide, dirige le groupe de travail Kilo Hotel, qui a été créé pour enquêter sur le décès de Kevin.

Un raid contre la drogue sur le bateau de Jim Pappas, le principal suspect dans la mort de Kevin, s'achève sur le meurtre de Pappas par Knocker.

The body of a teenage boy is found in the boot of a car. There are similarities between this murder and that of another boy 13 months earlier. Holloway makes it his personal quest to find the killer, and he meets a beautiful crime scene officer, Caroline Cox (Mary Regan). Goldie has been denied access to her son, David, for six months, and she does everything to get to see him. Gavin Sykes (Brett Partridge) investigates a boat accident.

A man is killed when a speed boat is deliberately driven into the back of his vessel. A friend who was with him at the time identifies the person responsible as a well-known crime figure and an old enemy of Frank's: Marty Miller (Peter Kowitz). Sykes takes part in a training course for police divers. Goldie and Knocker seem to get along very well, and a vietnamese cleaner, Thong, is found dead at the Water Police headquarter.

A hostage is taken and there is a high speed car chase : Marty Miller makes a final stand against Holloway. Internal Affairs suspects Helen of selling information that led to an elderly woman's death. The accusations against Helen makes things bad between her and her lover Anne Harvey

Frank is rushed to hospital after he is shot in an armed hold up. Chief Inspector Clarke Webb meets an old flame, Moira who gives interesting information about the robbers. John Harrison confronts Goldie's ex-husband about giving Goldie access to her son. Jeff Hawker investigates a boat accident.

Inspector Webb is slow in coming forward with information on the death of Moira Randall as he doesn't want his affair with her uncovered. The Nemesis crew is kept busy by a group of drunken university students on Shark Island. Hawker tells Helen that he will apply for the post as Chief Inspector if Webb has to leave. He's surprised when Helen says she also will apply for it.

Harrison and the divers are called in when the body of a boy is found in similar circumstances to the other murdered teens. The detectives wonder if they arrested the wrong man.

Holloway finds a new lead on Kevin's murder after a young robber is caught with Kevin's missing gun.

Chris Kollias, the man Frank suspects of knowing more about his brother's death than he's saying, goes missing. It seems Frank will be forced to give up trying to find out what really happened the night his brother was forced over The Gap.

Detectives discover two people who died of carbon monoxide poisoning, they suspect a connection to the activities of Asian gangs. Frank and Rachel gets help from an Asian crime specialist from Task Force Oak. Rachel and Knocker announce their engagement.

Attending a bushfire at a coastal national park, the Nemesis crew notice bloodied tracks in the sand and find a man digging a body in a shallow grave. Harrison is called in to negotiate with a potential suicide.

Frank and Brady investigates Harrison. Brady believes Harrison has something to do with the death of Kevin Holloway.

When Megan, an anonymous witness to Kevin's death is killed, Brady and Holloway search for other people who may have seen what happened.

Meanwhile, Goldie and Knocker investigate a murder in a park. The Nemesis crew have to supervise a photo shoot for a world-famous model

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.