Chris Faithfull (Peter's wife), a drug squad undercover cop, survives the harrowing experience of a hostile gun to her head.

The Majors and the Bureau of Criminal Intelligence lock horns over an informant.

Frustration mounts for the Majors when another aggravated burglary occurs.

To Peter's annoyance, the Federal Police blow the cover of one of his informants.

Jock Brennan announces that the Major Crime Squad is to be disbanded. As the bitterly disappointed detectives plan to track down the last crook, Ian uncovers the mystery that has plagued forensic from the first burglary.