With the forensic evidence largely tagged and ready, Carol becomes increasingly cut off from Ian and the lab. Now that she has returned to work - abandoning her maternity leave - her entry into the team rearranges alliances at a critical moment. Other crimes are drawing much needed resources from the investigation. Jock takes too long to discover his team is close to disintegrating.

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.