Water Rats

The Water Police and Homicide detectives continue to search for Chris Kollias. It's not until the end of the episode that Holloway learns of Knocker's probable involvement.

An Asian crime racket is suspected when two dead bodies, killed by carbon monoxide poisoning, turn up in the harbour. They've both got evidence of having been tied up and they're both Asian.

Attending a bushfire at a coastal national park, the Boat Crew notice bloodied tracks in the sand. Following them, they reach a man digging a body into a shallow grave.