Jennifer and Nick are sent to investigate the murder of a young family, unaware they know the victims. Uncovering much more than mass murder, this investigation will shake the Homicide team to its very core. With national security at stake, Jennifer and Nick are ordered undercover by Federal Intelligence. During the course of this assignment, their relationship is re-heated.

The murder of the wife of a jewellery store owner points to an inside job gone wrong. And while the team search for an employee on the run, they must also contend with Sergeant Pete Copeland, an Armed Robbery cop who is used to doing whatever he likes - brute force and all - to get the results he wants.