Water Rats

Sykes rescues a woman who falls off a paddleboat and as a reward, she wants to take him to New Zealand. A woman contacts Rachel with her concerns about her daughter's new boyfriend.

While the boat crews are kept busy responding to a series of suicide hoaxes, Frank and Rachel play host to a detective from Scotland Yard who has been sent to take possession of the diamonds.

The boat crew's discovery of a man who has had his hand nailed to a tree by his neighbour leads the detectives into the investigation of his wife's disappearance and as they later learn, murder.

When a young woman is found drowned in the harbour, the detectives look into the activities of the last people to see her alive, forcing Mick to have to investigate one of his oldest mates.

Christey and Reilly's search for an escaped convict suspected in the attack on a retired prison officer brings them into conflict with undercover cops involved in an ongoing drug investigation.

The detectives fight to save the life of an undercover cop who is suspected of becoming emotionally involved with her target. Meanwhile, McCall and Sykes apprehend two squabbling bank robbers.