Det. Kennex and Dorian investigate Simon, a psychopathic killer who is strapping bombs to his victims' neck and broadcasting their final moments over the internet. When Simon targets Kennex, the team is in a nail-biting race against time to save his life. Meanwhile, a power deficiency affects Dorian's energy level, causing him to have unexpected outbursts.

There are consequences and casualties when Danica, an XRN (an advanced DRN that operates more like a soldier than a cop), is rebuilt and on a rampage. With few clues about her mission, location and innocent lives being lost, Kennex and Dorian look to Dr. Nigel Vaughn, a genius roboticist and DRN creator, in attempt to track her down.