Con Campbell, leader of the 'Sharks' Bike gang, and two other bikies force Doug Mason off a quarry edge to his death. Investigations reveal that mason was a drug pusher, and Campbell's sister died as a result of the use of drugs supplied by Mason.
A picnic in the country for a teenage couple ends in rape and murder, Sgt. White becomes so involved in the case that Insp. Lawson orders him to take time off .But Harry follows the case through. as he is convinced he knows the perpetrator.
A takeover bid by a massage parlor boss leads to the death of a rival in a car explosion . Fearing for her own life and business, parlor manager Kate Holsworth turns to the only cop she can trust-Inspector David Mackay, who returns to the Homicide squad to assist in the investigation.