An abandoned ship arrives in Sydney waters from Thailand. It's a Marie Celeste-style mystery - except for a dog on board, some scorched bones and a heap of ashy remains.

Billy Pope's girlfriend is found murdered on the eve of giving evidence in a enquiry into police corruption. It's payback time for the Rispoli family whose lives were cut by the police.

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.

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

The working relationship between Jack Christey and Goldie gets off to a rocky start. Already compromised by their past affair, further strain is added when Jack insists on taking the lead in a murder case involving an old acquaintance.

Jack Christey and Rachel Goldstein race to save two young girls whose lives are at stake when they inadvertently become caught up in a drug smuggling ring.