The Sydney Water Police investigate a fatal bombing on a charter ferry while trying to locate other explosive devices that may still be located in the harbour. The Nemesis crew scrambles to recapture a murder suspect who escapes custody. Kevin Holloway, Frank's younger brother, joins Homicide and is partnered with Frank's good friend Knocker Harrison.

A man claiming to have the missing bomb takes hostages on a passenger ferry. Frank and Rachel stake out a yacht to catch a scantily clad burglar. A diver dismissed from duty dives the site of the ferry wreck to locate the fourth bomb in order to eliminate the hijackers threat. Frank's older brother Jimmy is released from prison two years after Frank put him away as part of a drug bust.

A charter boat with children on board explodes. The water police speed to the rescue, but are too late to save a 13-year-old girl. The hunt is on for the arsonist responsible.

Tonight Goldie and Frank are looking for the Iron Man's murderer. the body of a champion Iron Man is found dead. The forensic examiner says he died of a heart attack, his body full of steroids. Frank's younger brother Kevin Holloway (Jeremy Callaghan) and ""Knocker"" Harrison :sists Goldie and Frank on the investigation. Meanwhile, a rich businessman is arrested by the ""Nemesis"" crew for being drunk while in charge of a motor launch with a party of Koreans on board. Helen's former lover, Julie Haynes, pays Helen an unexpected visit and asks Helen for a favour.

A load of Scotch has been stolen from the wharves and a night watchman killed. Tommy's father is embroiled in a row with a rival fishing family.

The water police investigate the death of a recreational diver and assume it was an accident, while the insurance company claims it was suicide.

Holloway is caught on film collecting an envelope containing a large amount of money that has been left in a waterfront warehouse. Internal Affairs accuse him of taking a bribe but Holloway explains that somebody has been leaving him envelopes all over town with tip-offs inside. This is the first time there has been money.

Kevin Holloway's car is found still with the keys in the ignition at The Gap - a notorious suicide spot. Meanwhile Goldie is served with court papers seeking to cut off all access to her son David.

As Chief Inspector Webb and Knocker Harrison continue investigating Kevin Holloway's disappearance, Frank is angry he ever allowed himself to believe his brother may have suicided. There's a grim discovery in the harbour of a number of body parts. Jeff Hawker doesn't like the relationship between Cassidy and Watson, and offers Cassidy a job as supporting officer, on the condition that she ends her relationship with Watson.

Frank and Goldie are whisked to a warehouse being used in the ongoing investigation into Kevin Holloway's disappearance. Goldie, Frank, Knocker and Brady search Pappas boat for narcotics. They suspect Pappas is involved in Kevin Holloway's disappearance. The boat crew accompany the Sheriff to a cargo ship that has docked.