 Sam and the task force probe a series of ghastly murders which are carefully videotaped and sent to TV newsrooms by a vigilante who announces that the crimes are righteous retribution against guilty people who slip through the judicial system. When a young Brooklyn woman is kidnapped and thought to be alive, Sam, Bailey and John accelerate the investigation to former law students with strong opinions about crime and punishment. Meanwhile, Grace secretly takes a leave when she realizes that she s pregnant. Also, the unseen Jack of All Trades is revealed to be alive and settled in another lair while continuing to spy on Sam and taping her phone line.